Kiddushin 82a ~ The Best Doctors Go to Hell. Or to Israel.

קידושין פב, א

רבי יהודה אומר משמו החמרין רובן רשעים והגמלין רובן כשרין הספנין רובן חסידים טוב שברופאים לגיהנם והכשר שבטבחים שותפו של עמלק

Rabbi Yehuda said in the name of Abba Gurya: Most donkey drivers are evil; most camel drivers are righteous; most sailors are pious; the best of doctors is destined for hell; and even the best butcher is a partner with Amalek.

"The best of doctors is destined for hell". Thats quite a statement for Rabbi Yehudah to make.  Writing in The Atlantic several years ago, the late Sherwin Nuland told this (probably apocryphal) story:

Imprisoned in a tower in Madrid, disabled by syphilis and further weakened by an abscess in his scalp, the French king Francis I asked of his captor, the Holy Roman Emperor Charles V, that he send his finest Jewish physician to attempt a cure. At some point after the doctor arrived, Francis, in an attempt at light conversation, asked him if he was not yet tired of waiting for the messiah to come. To his chagrin, he was told that his healer was not actually Jewish, but a converso who had long been a baptized Christian. Francis dismissed him, and arranged to be treated by a genuine Jew, brought all the way from Constantinople.

Whether true or not, the story illustrates the esteem in which Jewish doctors were - and often still are held.  So what did Rabbi Yehudah mean by condemning the best physicians to hell? Let's take a quick survey of some of the answers suggested through the ages.

1. Rashi (France, 1004-1105)

Rashi gives this explanation:

טוב שברופאים לגיהנם. אינו ירא מן החולי ומאכלו מאכל בריאים ואינו משבר לבו למקום ופעמים שהורג נפשות ויש בידו לרפאות העני ואינו מרפא

The best doctors go to hell. The do not fear sickness. They eat the food of the healthy, and they do not act humbly before God. Sometimes they kill, and sometimes they are able to heal a poor person but do not do so.

Rashi gives five reasons why even good doctors are, well, not so good. First, they believe that they themselves cannot become sick (אינו ירא מן החולי). Second, they eat a  diet of those who are healthy (ומאכלו מאכל בריאים) and so apparently avoid illness themselves.  As a result of both of these factors, they are rather proud of themselves (ואינו משבר לבו למקום. Sidebar: what's the difference between God and a cardiothoracic surgeon? God doesn't think he's a cardiothoracic surgeon...) Fourth, they make mistakes that kill the patient (פעמים שהורג נפשות), and finally, according to Rashi, they are so focused on the business end of medicine that they only heal those who can pay.

While Rabbi Yehudah made a general statement about the destiny of good physicians, Rashi, writing in eleventh century France, was not short of examples of bad ones. No doubt Rashi's comments reflected the contemporary practice of medicine. But if, as Rashi suggests, doctors would eat a healthy diet and so avoid becoming sick themselves, why did they not share this information - even at a price? Moreover, there is no evidence that any diet could play any role in delaying (or curing) many causes of death in the pre-antibiotic era: cholera, smallpox, plague and regular plain old pneumonia. Rashi's explanation raises far more questions than it answers. So let's keep going...

2. The Ramban - Moses ben Nachman (Spain, 1195-1270)

ואין לך ברפואות אלא ספק סכנה, מה שמרפא לזה ממית לזה וזו שאמרו 'טוב שברופאים  לגיהינום' לגנות דרכן של רופאים בפשיעות וזדונות שלהם. – תורת האדם שער המיחוש - ענין הסכנה ד"ה אבל 

Medical interventions are nothing but a danger. What heals one person kills another. And this is what is meant when they said "the best doctors go to hell" - to disparage the practice of physicians and their malpractice...

Ramban is sweeping in his assessment of the practice of medicine: medical interventions are nothing but dangerous (ואין לך ברפואות אלא ספק סכנה).

3. The Meiri - Menachem ben Meir (France 1249-1316)

מפני שכמה פעמים שופך דמים מפני הייאוש ואינו משתדל כראוי במלאכת רפואתו או שאינו יודע לפעמים סבת החולי ודרך רפואתו, ועושה עצמו בקי. בית הבחירה קידושין פ

For often they shed blood, because they give up and do not try to apply their trade as physicians appropriately.  At other times they do not know the etiology of the disease and how it should be treated, and yet pretend as it they do.

Here is a rather different explanation. It is not that medicine is intrinsically worthless (as the Ramban opined), but that physicians are not diligent about how they practice, and do not admit when they are not knowledgeable. Presumably if the physicians were more scrupulous and more honest about the limits of their own knowledge, Meiri would not have them condemned to hell.

4. Jacob ben Asher (Germany 1270-1343)

שנתנה לו רשות לרפאות ומצווה היא ... והזריז הרי זה משובח ואם מונע עצמו הרי זה שופך דמים .... ואם לא נתעסק בה כלל הרי זה שופך דמים ובן גיהינום הוא בוודאי.  טור, יורה דעה של"ו 

Permission has been given to heal, and to do so is a mitzvah...and one who is eager to heal is to be praised, but if he [is able to heal but] does not do so, he is considered to have shed blood...and if he does not engage in medicine he is considered to have shed blood and is certainly destined to hell...

Jacob's explanation is novel and turns from critic to job coach. Medicine is so important - (presumably because he felt that it actually worked) that one who could be a physician but does not choose this path (he's talking to you, lawyers) is "certainly destined to hell" (ובן גיהינום הוא בוודאי). 

5. Shlomo ibn Virga (Spain, ~1460-1554)

שיראה לעולם גיהינום פתוח לפניו אם ייהרג האיש שהרפואה על ידו ובזה יעיינו ויעשו החריצות הראוי, וה'טוב' הוא כאשר יחשבו שהם עתידים לירש גיהינום אם לא יכוונו כראוי   , במחשבה ועיון. שבט יהודה ירושלים תשט״ו, קי’ג

The physician should act as if hell itself is open before him if his treatments kill the patient.  In this way, will he will act with caution and diligence. The "best" of physicians is one who acts as if he might one day inherit hell, unless he is appropriately careful and attentive...

Ibn Virga (the author of שבט יהודה) turns the Rabbi Yehudah's phrase from descriptive to cautionary: be a good doctor or else you could go to hell. Could the fact that he was himself a physician have influenced his novel explanation?

6. The Maharal - Judah ben Bezalel Leviah (Prague, 1512-1609)

מי שהוא רופא ואינו בעל תורת אלוקים עם זה הרי כל עניינו שהוא מעיין כחומרי בלבד, לכך הוא בעל גיהינום.  ספר נצח ישראל, ל'

A physician who is not also an expert in God's Torah will view his subjects as nothing but material beings.  Therefore he is destined for hell...

The Maharal, who viewed the world as ruled by both material and spiritual forces, explained Rabbi Yehuda as giving a warning. But unlike the warning Ibn Virga saw - to be the best doctor you could be - the Maharal saw the Rabbi Yehuda warning the physician to be part rabbi too - and to view his healing powers as derived from God.  

7. Joseph Almanzi (Italy, 1801-1860)

Almanzi, poet and book collector, took this whole doctors-go-to-hell thing to a whole new new level. He wrote a poem titled The Worst Doctors Go to Hell, which I suppose is a lot better than sending the best of them there. The poem is part of collection published in Padua in 1858. Here it is in the original:

Like all poetry, it's a lot better, and a lot more caustic in the original, but here is a flavor:

Wicked Doctor !

You have lied against God's commands

You have despised his Torah

And the laws of humanity

"Do not kill, do not commit adultery" - you erased these like a passing cloud

And you have made "Do not steal" into contrition the graveside...

You have shed innocent blood; therefore against you,

To avenge the myriads of those who died on your account

Spirits and demons will come like good times

The Super Sad True Story of Medicine from Hippocrates to the Nineteenth Century

In Thomas Dekker’s The Honest Whore, we are told that it is far safer to fight a duel than to consult a doctor. In Ben Johnson’s Volpone doctors are said to be more dangerous than the diseases they treat, for ‘they flay a man / before they kill him’
— David Wootton. Bad Medicine. Doctors Doing Harm Since Hippocrates. Oxford University Press 2006. 139.

The history of doctors doing more bad than good is a long and sad tale. From the time of Hippocrates until about 1865 (when Lister pioneered antiseptic surgery), if you were sick, injured or ailing, you were better off not going to a doctor. Let me repeat that, to be sure there is no misunderstanding: until about 1865, all doctors did more harm than good

Hippocrates of Cos is believed to have lived from about 460-375 BCE. It was he and his successors who seem to have first suggested that daily life should be managed to insure the right amount of food, drink, sleep, exercise.  In addition, the Hippocratic school believed that excess fluids could- and should be eliminated from the body in one of three ways: by using emetics to induce vomiting, by using purgatives to induce diarrhea, and by letting blood.  Later, a fourth “therapy” was introduced: cautery, in which hot irons were applied to the body.  None of these therapies helped any internal conditions, and the only benefits from Hippocratic practitioners was in setting bones and lancing boils. In addition to introducing purgatives, laxatives and blood letting, there was another "contribution" made by the ancient medics: the four humors.

Although the four-humor system seems to have first been suggested by Polybus, who was the son-in-law of Hippocrates, it was made popular by Galen (~130-201 AD): blood, phlegm, black bile and yellow bile.  Galen (who claimed to have discovered a new kind of bile- black- which was noted as sediment if blood was allowed to stand and separate) attributed disease to an over abundance of one or the other of the humors, and so bloodletting became a cure for almost all conditions. This remained true until the late nineteenth century.  

According to the masterful historian David Wooten, if you look at therapies and not theories, then ancient medicine survived into the nineteenth century – and beyond. Although ideas about the body changed as a result of the scientific revolution, medical therapies changed very little, if at all. Bloodletting was the main medical therapy in talmudic times, and in 1500, 1800, and even 1850. Of course it was not only of no benefit, but was certainly of great harm. It continued to be used because it looked like it was working: the patient's pulse would slow, his temperature would drop, and he would fall into a sound sleep.

Trust not the physician;
His antidotes are poison and he slays
— William Shakespeare. Timon of Athens, iv, iii, 434-436.

The Discovery of the Placebo Effect

James Gillray (1757-1815). Metallic Tractors. Wellcome Library for the History and Understanding of Medicine, London

James Gillray (1757-1815). Metallic Tractors. Wellcome Library for the History and Understanding of Medicine, London

None of the supposed remedies used by physicians were ever tested against each other - or against nothing, (and they all did more harm than doing nothing). But eventually someone suggested testing medical interventions for their efficacy.  That someone was John Haygarth (1740-1827), a British physician, who was skeptical of a new popular treatment "just arrived from America", which involved metallic tractors placed on the body to relieve pain through the agency of animal magnetism. These tractors had been invented by a Philadelphia physician Elisha Perkins, and were apparently all the rage in America; one historian noted that "George Washington, no less, purchased a set for the use of his own family, as did the Chief Justice, the Honorable John Marshall, who gave his judgement that 'the effects wrought are not easily ascribed to imagination, great and elusive as is its power'." Back in England, John Haygarth put the tractors to the test in 1799: he manufactured sham tractors made of wood, and tested them on five patients at the Bath Infirmary. Equal effects were found with both the Perkins and the fake tractors - and the placebo effect had (at long last) been discovered.

Haygarth's discovery was about far more than these silly metal rods, because it suggested that much of what standard medicine was offering was a placebo effect at best (or a dangerous intervention at worst).  Haygarth's work raised this question: shouldn't other orthodox medical treatments be tested too?

Bloodletting is finally Unmasked - Kinda

Bloodletting - the best that medicine could offer from Hippocrates, through the times of the Talmud until the nineteenth century was finally tested in the late 1820s, by the very French sounding French physician Pierre-Charles-Alexandre Louis (1787–1872).  Louis set to test the theory of another French doctor, Francois Joseph Victor Broussais, who claimed that all fevers were due to an inflammation of the organs. "Accordingly", wrote the epidemiologist Alfredo Morabia, 

leeches were applied on the surface of the body corresponding to the inflamed organ and the resultant bloodletting was deemed to be an efficient treatment. For example, the chest of a patient suspected of having pneumonitis was covered with a multitude of leeches. Broussais’s theories were highly regarded by contemporary French physicians. His influence can be assessed using an economic measure: in 1833 alone, France imported 42 million leeches for medical use.

Louis tested this extreme form of bloodletting in 77 patients, and found results that were all over the place.  More patients died who were bled early, but their duration of disease was also shorter, when compared with those who were bled later. Sadly, Louis did not conclude that bloodletting was dangerous, but that "its influence was limited". Louis is now recognized as setting the groundwork for the modern practice of epidemiology, in which outcomes are measured and counted. Interestingly, using a modern analysis of Louis' bloodletting results, "the group bled during the first four days of disease does worse (P-value=0.07), and this would appear to make a protective effect of bleeding highly unlikely." The efficacy of bloodletting was finally being tested, and though it would remain a staple therapy for several more decades, fortunately, its days were numbered.  

Rabbi Dr. Lampronti on Doctors Gone Bad

Returning to our troubling phrase "the best of doctors go to hell," perhaps the most intriguing - and prescient  - explanation is that of Isaac Lampronti(1679–1756). Lampronti was an Italian Jew who studied medicine at Padua. He completed his studies at the age of twenty-two and returned to his home town of Ferrara in northern Italy.  There he became a rabbi and eventually rose to become the head of the yeshivah in the city, all while continuing to practice medicine. Lampronti introduced a curriculum of dual learning in his yeshivah, which, according to the historian David Ruderman, became “the quintessential Jewish institution of learning in Italy, where Judaism and the biological sciences, along with the propaedeutic language training necessary to pursue both, were meaningfully infused.” Lampronti is best known for his lengthy alphabetical encyclopedia of Jewish law, Pahad Yizhak (The Fear of Isaac), in which each entry contained material from the Mishnah, Talmud, later commentaries, and the responsa literature, in addition to updates from contemporary science.  Here is his entry on the phrase from today's daf:

טוב שברופאים לגיהנם... ורבו עליה הפירושים... ואני אומר, דעל הקירורגים נאמרה, יען וביען הם משנים מצות החכם ובפרט בהקזת דם מרבים או ממעטים כפי שיכלם הקצר וממיתים החולים, וכמה פעמים ראיתי אני הצעיר המחבר כאלה לרוע

The best doctors go to hell: There are many explanations of this...and I believe that this is referring to surgeons, for this reason: they change the commandment of the wise, in particular with regard to bloodletting. They take more or less blood based on their limited understanding, and by doing so they condemn the patient to death. And there are a number of occasions in which I,  your young author, have seen this and its bad outcome...    

Let's be clear here. Lampronti was not suggesting that bloodletting was nonsense.  As a physician who had trained in Padua he was certain to believe it was effective. Rather, he blamed physicians - or rather surgeons - for using the intervention imprecisely, in so doing, "condemned the patient to death." When Rabbi Yehudah condemned the best doctors to hell, it was these surgeons and their bloodletting to whom he referred. Just ot make the point, here, also from today’s daf, a talmudic assessment of these blood-letters come surgeons:

קידושין פב, א

תנו רבנן עשרה דברים נאמרו בגרע מהלך על צידו ורוחו גסה ונתלה ויושב ועינו צרה ועינו רעה אוכל הרבה ומוציא קימעא וחשוד על העריות ועל הגזל ועל שפיכות דמים 

Our Rabbis taught: Ten things were said of a blood-letter. He is haughty and has a conceited spirit, he leans back when sitting, has a grudging eye and an evil eye; he eats much and excretes little; and he is suspected of adultery, robbery and bloodshed.

Finally, An Explanation of "The best Doctors Go to Hell"

Celsus…in the first century AD, recommended blood letting for severe fever, paralysis, spasm, difficulty in breathing or talking, pain, rupture of internal organs all acute (as opposed to chronic) diseases, trauma, vomiting of blood. It was still being used as a nearly universal remedy in the middle of the nineteenth century.
— David Wooten. Bad Medicine. Oxford University Press 2006. p37.

In terms of medical texts, little changed from the time of Hippocrates until the mid-seventeenth century, when discoveries of the circulation were made.  Wooten sums up the unchanging world of medicine by noting that  

...from the fifth century BC until the end of the nineteenth century…doctors found patients who were prepared of pay for treatment that was at best ineffectual, and usually deleterious. Throughout this period, surgery…was commonly fatal, which the common therapies were bloodletting, purging and emetics, all of which weakened patients. Advances in knowledge, as such as the discovery of the circulation of the blood, had no pay-off in terms of advances in therapy, so that we might say that all progress was in human biology none of it in medicine.

Before 1865, doctors could set some broken bones, reduce dislocations and lance boils.  Later, they could prescribe opium for pain, quinine for malaria, digitalis for some causes of dropsy, mercury for syphilis, and orange and lemon juice for scurvy. But that was it, and for two-thousand years medicine remained essentially unchanged. "A doctor in ancient Rome "wrote Wooten, "would have done you just about as much good as a doctor in early nineteenth-century London, Paris, or New York." Which is to say, no good at all. 

We have noted before that The Principle of Charity asks a reader to interpret the text they are reading in a way that would make it optimally successful.  We are now in a position to do just that for Rabbi Yehudah's puzzling  declaration "the best doctors go to hell". For before the introduction of antiseptic surgery in 1865, the best of doctors could not be separated from the worst. Their interventions did no good, and often harmed or killed their patients. They were at best useless, and at their worst, agents of death.  Perhaps this is why Rabbi Yehudah condemned them to hell.

For one will nor find in the annals of history any city whose salvation was achieved through the wisdom of Torah scholars. Thus, my advice is that everywhere, except for Poland (where clergy are treated well), one should choose a profession outside the world of Torah, and the field of medicine superior to all others. Other professions are simply a waste of time and money, and ultimately yield no benefit.
— Joseph Delmedigo, Meshiv Nefesh, 42

ּAnd Yet, Medicine is a great profession

Despite the damning evaluation of Talmud about the best of physicians, the practice of medicine was always seen as a wonderful profession for Jews. Here are a few examples, but caveat emptor, they all come from um, physicians.

Shem Tov ibn Falaquera (1224-1290)

ibn Falaquera was Spanish physician. Here is what he wrote in Sefer ha-Mevakesh,

I too have heard that the sages enjoin one to learn a wholesome occupation which can serve as protection against the vagaries of fate... Wise men have stated that the practice of medicine is superior to all other occupations, for it is both a profession and science and is closest to the science of nature.

Joseph Delmedigo 1591-1655

Joseph Delmedigo, was born Island of Crete in 1591. He had a very broad Jewish and secular education, and at the age of fifteen he left for Italy, where he enrolled in the University of Padua. There he studied astronomy, mathematics, natural science, and medicine. And there he was taught by a certain Galileo Galilei. Delmedigo was both a physician and an astronomer, and did not have nice things to say about Torah scholars:

For one will nor find in the annals of history any city whose salvation was achieved through the wisdom of Torah scholars. One would be better served with craftsmen and builders, this is even truer for the Jewish people, as we do not possess fields, or vineyards, of property. Thus, my advice is that everywhere, except for Poland (where clergy are treated well), one should choose a profession outside the world of Torah, and the field of medicine superior to all others. Other professions are simply a waste of time and money, and ultimately yield no benefit. In medicine, one can draw on the books of medicine in the Jewish tradition...

Benjamin Wolff Gintzburger

Benjamin Wolff Gintzburger, “the scion of a distinguished rabbinical family from Lithuania, and the first Jew to graduate with a medical degree from the University of Göttingen” which he obtained in 1743. He thought there was something rather divine about the practice of medicine.

No one, indeed, will deny ancient Hebrew medicine its fame, not only on account of divine testimony dating back to the most remote times, but also due to its special support, The same miraculous hand that has guided the chosen people also keeps the laws of healing nature in their utmost stability... Thus, it is evident that the divine hand, to be venerated everywhere, confirms, sustains and assists the power of medicine... When I thus praise the masters of Hebrew medicine, to mention these here is necessarily only a beginning, They have enriched the art born of human endeavor and furthered it by their ability and industry."

Aaron Solomon Gumpertz (1723-1769)

The German physician and (and friend of Moses Mendelssohn) Aaron Solomon Gumpertz graduated from the University of Frankfurt in 1751. In his commentary on the ibn Ezra called Megaleh Sod, he explains why he became a physician.

And I searched here and there, exploring the different professions, both the easy and the challenging, which is the just and clear path for one who wishes to glorify Him, which is enrobed in kindness and righteousness, and I did not find but the profession of medicine, that we have learned through tradition was practiced by great Torah scholars like Ramban, Rambam, Ralbag, Ri mi-Candia Yosef Shlomo Delmedigo], and many, many others in addition, throughout the generations. They were glorified and honored through its put-suit, for its practice is valuable and honored, service akin to the service of God.... unlike the professions of carpentry and building. With one unified voice they say, blessed is he who chooses it (medicine] and inclines his heart to the heavens... and his reward will be great.

(Want more on what Jewish physicians thought of the practice of medicine? See this wonderful article by Dr Eddie Reichman in the latest edition of Hakira, from where these examples are taken. Yes, it is behind a paywall. So pay up, it’s a great journal.)

Doctors aren’t so bad, really

Last week, together with about 1,000 others, I was on a Zoom update from Israel’s Ministry of Health for physicians, nurses and paramedics who want to volunteer and come to Israel. I don’t know if I heard this correctly, but I thought one of the representatives said that some 7,000 physicians had signed up to date. Wow. And really, times have changed. The best of us don’t deserve to go to hell. The best of us want to go to Israel.

Blessed is he who chooses medicine and inclines his heart to the heavens
— Megaleh Sod, Aaron Solomon Gumpertz (1723-1769)

  תם ונשלם מסכת קידושין וסדר מועד

וברוך מתיר אסורים ושומר עמו ישראל לעולם ועד


אַחֵינוּ כָּל בֵּית יִשְׂרָאֵל

הַנְּתוּנִים בַּצָּרָה וּבַשִּׁבְיָה

הָעוֹמְדִים בֵּין בַּיָּם וּבֵין בַּיַּבָּשָׁה

הַמָּקוֹם יְרַחֵם עֲלֵיהֶם

וְיוֹצִיאֵם מִצָּרָה לִרְוָחָה

וּמֵאֲפֵלָה לְאוֹרָה

וּמִשִּׁעְבּוּד לִגְאֻלָּה

הָשָׁתָא בַּעֲגָלָא וּבִזְמַן קָרִיב

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Talmudology on the Parsha, Vayera: Visiting the Sick

בראשית 18:1

וַיֵּרָ֤א אֵלָיו֙ ה׳ בְּאֵלֹנֵ֖י מַמְרֵ֑א וְה֛וּא יֹשֵׁ֥ב פֶּֽתַח־הָאֹ֖הֶל כְּחֹ֥ם הַיּֽוֹם׃

And the Lord appeared to him [Amraham] by the terebinths of Mamre,

as he sat in the tent door in the heat of the day.

Rashi, the famous eleventh century commentator, cites a statement by Rabbi Hama that explains what exactly it was that God was doing when he appeared to Abraham:

רש׳י שם

וירא אליו. לְבַקֵּר אֶת הַחוֹלֶה. אָמַר רַבִּי חָמָא בַּר חֲנִינָא, יוֹם שְׁלִישִׁי לְמִילָתוֹ הָיָה, וּבָא הַקָּבָּ"ה וְשָׁאַל בִּשְׁלוֹמוֹ (בבא מציעא פ"ו)

וירא אליו AND THE LORD APPEARED UNTO HIM to visit the sick man. R. Hama the son of Hanina said: it was the third day after his circumcision and the Holy One, blessed be He, came and enquired after the state of his health (Bava Metzia 86b)

More from Rabbi Hama

Rabbi Hama bar Hanina, who lived in Israel in the third century CE turned his exegetical comment into a social action program. Here it is:

סוטה יד, א

ואמר רבי חמא ברבי חנינא מאי דכתיב אחרי ה' אלהיכם תלכו וכי אפשר לו לאדם להלך אחר שכינה והלא כבר נאמר כי ה' אלהיך אש אוכלה הוא אלא להלך אחר מדותיו של הקב"ה מה הוא מלביש ערומים דכתיב ויעש ה' אלהים לאדם ולאשתו כתנות עור וילבישם אף אתה הלבש ערומים הקב"ה ביקר חולים דכתיב וירא אליו ה' באלוני ממרא אף אתה בקר חולים

Rabbi Chama the son of Rabbi Chanina said: What is the meaning of the verse (Deut 13:5) "You should follow the Lord your God"? Is it possible for a human to follow the Divine?...The verse mean that you should emulate God's attributes. Just as he clothed the naked...you should clothe the naked. Just as Holy One, Blessed be He visited the sick...you too should visit the sick...

The Talmud on visiting the sick

For Rabbi Hama, visiting the sick should be performed because it's the right thing to do: after all, God himself visited Abraham as he was recovering from circumcision. Elsewhere, the rabbis of the Talmud taught that visiting the sick wasn’t just a kind action; it actually aided in their recovery:

נדרים לט, ב - מ, א

תניא ביקור חולים אין לה שיעור ... אמר אביי: אפי' גדול אצל קטן רבא אמר אפי' מאה פעמים ביום אמר רבי אחא בר חנינא כל המבקר חולה נוטל אחד מששים בצערו

יצא ר' עקיבא ודרש: כל מי שאין מבקר חולים כאילו שופך דמים. כי אתא רב דימי אמר: כל המבקר את החולה גורם לו שיחיה וכל שאינו מבקר את החולה גורם לו שימות

Visiting the sick is a mitzvah that has no limit... Abaye said that even an important person must visit a lesser person who is ill...Rava said: [you must visit a sick person] even one hundred times a day...Rabbi Acha bar China said: "Whoever visits a sick person takes away one-sixtieth of his suffering...

Rabbi Akiva expounded and said: "Whoever does not visit the sick, it is as if he sheds blood." When Rav Dimi came [from Israel to Babylon] he said: "Whoever visits the sick causes the person to live, and whoever does not visit the sick, causes the person to die." (Nedarim 39b-40a)

Visiting the Sick in the Modern Intensive Care Unit

Many years ago, as part of my day job, I visited the famous Grady Memorial Hospital in Atlanta, and was privileged to be given a tour of their new Neurocritical Care Unit, part of the Marcus Stroke and Neuroscience Center (and thank you, Bernie "Home Depot" Marcus). While the unit has all the fancy equipment you'd expect, what impressed me the most was a feature I had not seen in any other intensive care unit (ICU): every patient room has an adjoining suite where a family member can eat, sleep, shower and wait (and there is a lot of waiting in ICUs). There are no visiting hours; the family member literally lives in the ICU with their loved one.  My tour guide explained that the unit sees the presence of  visitors as a way of offering the best care to the patient. It is a wonderful approach to the care of the sick - but it wasn't always like that.

A HISTORY OF VISITING THE SICK - IN HOSPITALS

Visiting times in hospitals still vary greatly, and many have an open door policy. But not too long ago, you might only be able to visit a patient in a hospital for a couple of hours each week. In the 1870s, Doncaster Royal Infirmary in Britain limited visiting to three afternoons a week - which was a more generous policy than that of the Royal Berkshire Hospital, which allowed only one 15 minute visits twice a week. In a survey of over 400 British hospitals conducted in 1988, over a quarter of those which replied allowed visiting for no more than two hours a day. Perhaps these restrictive policies were in response to some visitors who abused the generosity of Britain's glorious National Health Service. 

[A more open visiting policy] proved to be a disaster, primarily because of abuse of the system by visitors. Many would arrive promptly at 8 am and stay all day. They would bring sandwiches and flasks . . . and camp out by their relative’s bed . . . Others would eat patients’ food, [and] ask for extra cups of tea...there was even a threat of violence from a visitor asked to leave temporarily...
— Alderman B. Hospital visiting hours. BMJ 1988;296:1798-9.

HELP PATIENTS GET WELL SOONER - BY VISITING THEM

According to Rabbi Acha bar China, visiting the sick actually aids in their recovery (“Whoever visits a sick person takes away one-sixtieth of his suffering...). Perhaps this is less far-fetched than it sounds. In 2006 an Italian group reported the results of a study on the effects of hospital visitors on patient outcomes in its small intensive care unit.  The ICU changed its visiting policy from a restricted one (one visitor twice a day for thirty minutes) to an unrestricted one every two months.  After two years of this alternating policy, the authors compared the outcomes of their 226 patients. Despite significantly higher environmental microbial contamination during the unrestricted visiting periods, septic complications were similar. But the risk of cardiocirculatory complications was twice as high in the restricted visiting periods, which were also associated with a (non-significantly) higher mortality rate. The unrestricted group was associated with a greater reduction in anxiety score and a significantly lower increase in thyroid stimulating hormone from admission to discharge. The authors concluded that "liberalizing the visiting hours seems to be more protective because it is associated with a reduction in severe cardiovascular complications."

Incidence, with Odds Ratio and 95% Confidence Intervals, of septic and major cardiovascular complications in patients enrolled during the restricted (RVP) and unrestricted visiting periods (UVP) adjusted for age, gender, and time of enrollment.…

Incidence, with Odds Ratio and 95% Confidence Intervals, of septic and major cardiovascular complications in patients enrolled during the restricted (RVP) and unrestricted visiting periods (UVP) adjusted for age, gender, and time of enrollment. RR indicates relative risk; UT, urinary tract; pul., pulmonary; and CV compl., cardiovascular complication. From Fumagalli et al. Reduced Cardiocirculatory Complications With Unrestrictive Visiting Policy in an Intensive Care Unit Results From a Pilot, Randomized Trial. Circulation. 2006;113:946-952.

Writing in The Journal of the American Medical Association in 2004, Donald Berwick and Meeta Kotogal called for a change in the policy of restricted visiting hours in intensive care units.  They noted three areas which are often of concern to ICU staff when considering the question of visiting hours.  They also noted that although these concerns seem reasonable, the scientific literature tells "quite a different story."

Physiologic Stress for the Patient: "The concern that the patient should be left alone to rest incorrectly assumes that family presence at the bedside causes stress. The empirical literature suggests that the presence of family and friends tends to reassure and soothe the patient, providing sensory organization in an overstimulated environment and familiarity in unfamiliar surroundings. Visits of family and friends do not usually increase patients’ stress levels, as measured by blood pressure, heart rate, and intracranial pressure, but may in fact lower them. Nursing visits, on the other hand, often increase stress." 

Barriers to the Provision of Care: "The second concern is that the unrestricted presence of loved ones at the bedside will make it more difficult for nurses and physicians to do their jobs and may interfere with the delivery of care. The evidence suggests, however, that the family more often serves as a helpful support structure, increasing opportunities for patient and family education, and facilitating communication between the patient and clinicians." 

Exhaustion of Family and Friends: "The third concern is that constant visiting with the patient may prove exhausting for family and friends who fail to recognize the need to pace themselves. While that does sometimes happen, it is also true that open visiting hours help alleviate the anxiety of family and friends, allowing them to spend time with the patient when they want and to feel more secure and relaxed during the time they are not with the patient. One study found that open visitation had a beneficial effect on 88% of families and decreased anxiety in 65% of families."

A review of visitation policies in ICUs produced by the American College of Critical Care Medicine Task Force went one step further and found "no evidence that pets that are clean and properly immunized should be restricted from the ICU environment." So don't forget to bring the dog next time you visit a family member or friend in the ICU (or anywhere else for that matter). 

“...the preponderance of the literature supports greater flexibility in ICU visitation policies. Descriptive studies of the physiologic effects of visiting on mental status, intracranial pressure, heart rate, and ectopy demonstrated no physiologic rationale for restricting visiting. In fact, in seven of 24 patients with neurologic injuries, family visits produced a significant positive effect, measured by decrease in intracranial pressure.
— Davidson et al. Clinical practice guidelines for support of the family in the patient-centered intensive care unit: American College of Critical Care Medicine Task Force 2004–2005. Critical Care Medicine 2007; 35 (2): 612.

HOW TO VISIT A FRIEND WHO'S SICK - THEN, AND NOW

Most of the evidence about the benefits of visiting the sick that we've been discussing have centered on the ICU- because that's where most of the research has been done. But for most of the time, an ill friend will not be in the ICU, or even in the hospital. Instead they will be at home, and so that is where the visit will occur.  Sadly, the ability to be a friend to a friend who is sick does not come easy to all of us.  Here's what Letty Pogrebin noted, in her recent book How to be a Friend to a Friend Who's Sick:

It's not uncommon for people to freeze or panic in the company of misery, botch gestures that were meant to ease, attempt to problem-solve when we have no idea what we're talking about, say the wrong thing, talk too much, fidget in the sick room, sit too close to the patient or stand too far away. Some of us don't visit our sick friends at all...

The Talmud sensed that visitors need some guidelines as to how to behave, and Rav Shisha suggested the following rule (Nedarim 40): "One should not visit a sick person in the first three hours of the day or in the last three hours of the day." In addition, the Talmud notes that "one who goes to visit the sick should not sit on the bed nor on a bench or a chair, but instead should wrap himself up in his cloak and sit on the ground, because the divine presence rests above the bed of a sick person." While we may no-longer follow this advice, the suggestion that we take our visits to the sick seriously is one that we should heed. Let's close with some more advice, updated for the modern era, from Pogrebin's 2013 handbook (p86-86):

  1. Ask the patient to be honest with you and all their friends.

  2. Be honest with yourself about your attitude toward the visit.

  3. Think through your role in the visit.

  4. Don't visit if you can't abide silence.

  5. Be prepared to respond without flinching to whatever scene or circumstances greet you during your visit.

  6. Be sensitive to your friend's losses.

  7. Talk honestly with your children about the demands illness makes on friendship and how important it is to visit people who want company.

“What is the reward given for visiting the sick in this world? “God will guard him and restore him to life and he will be fortunate on earth, and You will not give him over to the desire of his foes.” [Ps 41:3.]:
”God will guard him” - from the evil inclination.
”And restore him to life” - from his suffering.
”And he will be fortunate on earth”- in that everyone will take pride in him.
”And You will not give him over to the desire of his foes”- for he will have good friends...
— TB Nedarim 40a.
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Talmudology on the Parsha: Milah and Credibility Enhancing Displays

בראשית 17: 9-10

וַיֹּ֤אמֶר אֱלֹהִים֙ אֶל־אַבְרָהָ֔ם וְאַתָּ֖ה אֶת־בְּרִיתִ֣י תִשְׁמֹ֑ר אַתָּ֛ה וְזַרְעֲךָ֥ אַֽחֲרֶ֖יךָ לְדֹרֹתָֽם׃

זֹ֣את בְּרִיתִ֞י אֲשֶׁ֣ר תִּשְׁמְר֗וּ בֵּינִי֙ וּבֵ֣ינֵיכֶ֔ם וּבֵ֥ין זַרְעֲךָ֖ אַחֲרֶ֑יךָ הִמּ֥וֹל לָכֶ֖ם כל־זָכָֽר׃

And God said to Avraham, Thou shalt keep My covenant therefore, thou, and thy seed after thee in their generations.

This is My covenant, which you shall keep, between Me and you and thy seed after thee; Every male among you shall be circumcised.

In this week’s parsha, God promises to Abraham that he will have countless descendents, be an ancestor of kings and inherit the entire land of Canaan. And what does God ask in return? Just one thing: circumcision.

Here are five talmudic sages who thought the idea was, well, great.

נדרים לא, ב

רבי ישמעאל אומר: גדולה מילה שנכרתו עליה שלש עשרה בריתות. רבי יוסי אומר: גדולה מילה שדוחה את השבת חמורה. רבי יהושע בן קרחה אומר: גדולה מילה שלא נתלה לו למשה הצדיק עליה מלא שעה. רבי נחמיה אומר: גדולה מילה שדוחה את הנגעים. רבי אומר: גדולה מילה שכל המצות שעשה אברהם אבינו לא נקרא שלם עד שמל שנאמר "התהלך לפני והיה תמים" דבר אחר גדולה מילה שאלמלא היא לא ברא הקב"ה את עולמו שנאמר כה אמר ה' אם לא בריתי יומם ולילה חקות שמים וארץ לא שמתי

R. Ishmael said, great is [the precept] of Milah (circumcision), Since thirteen covenants were made concerning it.  R. Jose said, circumcision is a great precept, for it overrides the strict laws of  Shabbat. R. Joshua b. Karha said: great is [the precept of] circumcision. For [neglecting] which Moses did not have [his punishment] suspended even for a single hour. R. Nehemiah said, great is [the precept of] circumcision, since it supersedes the laws of Nega'im. Rabbi said, great is circumcision, for in spite of all the commands that Abraham fulfilled, he was not called complete until he circumcised himself, as it is written, “walk before me, and be complete.” Another explanation: great is circumcision, since but for that, the Holy One, Blessed be he, would not have created the universe, as it is written, “but for my covenant (בריתי) by day and night, the laws of Heaven and Earth I would not have established." (Nedarim 31b).

Non-Religiously Motivated Circumcision

Medical circumcision is widely practiced in the US where the rate of male newborn circumcision is about 55%, down from a high of about 62% in 1999. (This change may be due to an increase in the Hispanic population, which is traditionally non-circumcising.) In Europe the rate varies greatly by country. In Britain about 16% of male babies are circumcised; in Denmark, the figure is less than 2%. Worldwide, about one-third of all male boys are circumcised by the age of fifteen.

In 2012 the Task Force on Circumcision of American Academy of Pediatrics reviewed the scientific literature about the health benefits of male circumcision.  The Task Force concluded that “the preventive health benefits of elective circumcision of male newborns outweigh the risks of the procedure.”  However, these health benefits were not enough for them to recommend circumcision as a routine procedure for all male newborns - and this position is also held by Britain's National Health Service.  What then, are the health benefits of male circumcision?

Global prevalence of male circumcision. From Male circumcision: global trends and determinants of prevalence, safety and acceptability. World Health Organizations and the Joint United Nations Program on HIV/AIDS, 2007. 

Global prevalence of male circumcision. From Male circumcision: global trends and determinants of prevalence, safety and acceptability. World Health Organizations and the Joint United Nations Program on HIV/AIDS, 2007. 

In the pluralistic society of the United States, where parents are afforded wide authority for determining what constitutes appropriate child-rearing and child welfare, it is legitimate for the parents to take into account their own cultural, religious, and ethnic traditions, in addition to medical factors, when making this choice.
— Technical Report: Male Circumcision. American Academy of Pediatrics. Pediatrics 2012; 130 (3): e756-785.

 Sexually Transmitted Diseases – including HIV

In 2005 the first study on the role of circumcision in protecting against HIV infection was published. The study was run in South Africa, where over 3,200 men were randomized to circumcision or no-circumcision. The study was stopped early when an interim analysis showed that HIV infection was 60% lower in the circumcision group. Male circumcision prevented six out of ten potential HIV infections. This was a remarkable finding.  In fact the study team commented that male circumcision provided an equivalent degree of protection against acquiring HIV infection “to what a vaccine of high efficacy would have achieved.”

And male circumcision is not just protective against HIV. It decreases the transmission rates for human papilloma virus (HPV) and herpes simplex virus 2 (HSV-2) in female partners, and the balance of evidence suggests that it also protective against syphilis. (But it doesn’t seem to protect against the two most common sexually transmitted diseases in the US – chlamydia and gonorrhea.) A team from John Hopkins University School of Public Health predicted that if neonatal circumcision rates in the US would fall to European levels of about 10%, the result would be an additional $500 million in healthcare costs. Over a ten year period, there would be more than 4,000 new HIV infections in men and more than 125,000 new herpes simplex infections.

With an estimated cost per infection averted in the range of $150 to $900 over a 10-year period (depending on the local incidence of HIV infection), male circumcision appears to be one of the most cost-effective preventive approaches, requiring only a one-time intervention.
— Piot and Quinn. Response to the AIDS Pandemic - A Global Health Model.New England Journal of Medicine 2013. 368;23. 2210-2218

Urinary Tract Infections and Phimosis

Male circumcision also protects against urinary tract infections – but according to the Task Force you’d have to circumcise about 100 babies to prevent one such infection. Phimosis (an inability to retract the foreskin) and other inflammatory problems of the penis are either absent or much reduced in circumcised boys:  “From ages 1 through 8 years, the rates were 6.5 penile problems per 100 circumcised boys over the study period, compared with 17.2 penile problems per 100 uncircumcised boys.”

Penile and Cervical Cancer

Penile cancer is rare, but cervical cancer is not.  Male circumcision reduces the risk of penile cancer by about 50%, and it seems that it also reduces the odds of cervical cancer in the man’s partner (especially if he has had six or more lifetime sexual partners.)

The Risks from Male Circumcision

There are of course risks associated with the procedure of male circumcision itself, but these are rare.  A recent study reviewed 1.4 million male circumcisions and found only 16 cases in which an adverse event occurred, although ten of these were serious.  Overall, the procedure is very safe when properly performed in the first year of life, but complications rise up to twenty-fold if the procedure is performed after infancy. (It goes without saying that the dangerous practice of metzizah  be-peh should never be performed.)

What about life after a safely performed circumcision? Does that change? One recent Belgium study of more than 1,000 men,  “circumcised men reported decreased sexual pleasure and lower orgasm intensity. They also stated more effort was required to achieve orgasm, and a higher percentage of them experienced unusual sensations (burning, prickling, itching, or tingling and numbness of the glans penis).” A Danish study found a similar result: “circumcised men …were more likely to report frequent orgasm difficulties…and women with circumcised spouses more often reported incomplete sexual needs fulfillment.” These were however, individual studies, and in 2013, the Journal of Sexual Medicine published an exhaustive meta-analysis of 36 publications describing the effects of male circumcision on aspects of male sexual function. It found no evidence overall "for any significant difference in components of sexual function, sensitivity, sexual sensation, or sexual pleasure in men who are circumcised and men who are not." Furthermore, it examined several studies of men circumcised in adulthood, which are of particular research interest since these men serve as their own control.  In this group too, the meta-analysis failed to find any adverse effect of circumcision on the parameters examined. 

The Costly Investment of Brit Milah

The medical benefits of male circumcision are well documented, and its risks are small. But none of these benefits were known to those who first introduced the ritual, and anthropologists wonder why circumcision, and other painful and irrevocable rites of passage, should be so common across cultures.  One possible answer comes from the theory of costly investment.

This is based on the finding that religious, ethnic and tribal groups that demand more from their members do better in the long run than those that demand less. These groups have to insure that all members contribute equally, and that there are no “free-riders” – those who are taking from the group but not giving back. One way to weed out the free-riders is to demand a costly and irrevocable investment in order to join the group – and that investment might be circumcision, tattooing or scarification, all of which are used as a means to induct new members. Once the costly investment is made, a person will be less likely to leave the group. Joseph Henrich (The Ruth Moore Professor of Biological Anthropology Professor of Human Evolutionary Biology at Harvard) has a term for these investmentscredibility enhancing displays (CREDs):

Participation in rituals involving costly acts will elevate people's degree of belief commitment. If the professed beliefs involve group commitment, cooperation toward fellow in- group members, or the hatred of out-groups, then ritual attendees will trust, identify and cooperate with in-group members more than non attendees.

...In learning how to behave and what to believe, learners give weight to both prestige and CREDs, among other things. Thus, successful cultural forms, especially those involving deep commitment to counterintuitive beliefs, will tend to begin with and be sustained by prestigious individuals performing CREDs. Cues of prestige influence who people pay attention to for learning, while CREDs convince them that the prestigious model really believes (is committed to) his or her professed beliefs. The “virtuous- ness” arises from these prestigious individuals' role as models. CGS [Cultural Group Selection] will favor, over long swaths of historical time, religions with role models who effectively transmit beliefs and practices that strengthen in-group cooperation, promote intra-group harmony and increase competitiveness against out-groups. 

From Henrich, J. The evolution of costly displays, cooperation and religion: credibility enhancing displays and their implications for cultural evolution. Evolution and Human Behavior 2009; 30: 244-260.

From Henrich, J. The evolution of costly displays, cooperation and religion: credibility enhancing displays and their implications for cultural evolution. Evolution and Human Behavior 2009; 30: 244-260.

Nelson Mandela's Ritual Circumcision

Whether or not Brit Milah is just another credibility enhancing display, it is a very widely practiced ritual- and extends far beyond the Jewish and Muslim communities.  Nelson Mandela recalled his own circumcision (at the age of 16!) in his autobiography

When I was sixteen, the regent decided that it was time I became a man. In Xhosa tradition this is achieved through one means only: circumcision.  In my tradition, an uncircumcised male cannot be heir to his father's wealth, cannot marry or officiate at tribal rituals. An uncircumcised Xhosa man is a contradiction in terms, for he is not considered a man at all, but a boy...

The night before the circumcision there was a ceremony near our huts with singing and dancing. Women came from the nearby villages, and we danced to their singing and clapping...At dawn, when the stars  were still in the sky...we were escorted to the river to bath in its cold waters, a ritual that signified our purification before the ceremony...We were clad only in our blankets, and as the  ceremony began, with drums pounding, we were ordered to sit on a blanket n the ground with our legs spread out in front of us...I could see a thin elderly man emerged from a tent and knee in front of the first boy...The old man was a famous ingcibi, ad circumcision expert...

Suddenly, I heard the first boy cry out: "Ndyindoda!"   (I am a man!), which we were trained to say at the moment of circumcision...before I new it, the old man was kneeling in from of me...without a word he took my foreskin, pulled it forward, and then, in a single motion, brought down his assegai...I felt fire shooting through my veins; the pain was so intense that I buried my chin into my chest. Many seconds seemed to pass before I remembered the cry, and then I recovered and called out, "Ndiyindoda"...A boy may cry; a man conceals his pain...I was given my circumcision name, Dalibunga, meaning "Founder of the Bunga,"...

Jewish Criticism of Milah

Among the most vocal critics of the practice today are those who are born Jewish. But circumcision has been criticized for as long as it has been practiced, and these self-criticisms are not new.  In the 1780s, a British Jew (who wrote anonymously) published a pamphlet called A Peep into the Synagogue, in which he was critical of many Jewish practices.  And his most scathing words were those he penned about circumcision:

In the extravagant Catalogue of Jewish absurdities, there is not one more shameful than that of Circumsition [sic], it is a barbarous violation of the principles of Nature,  For what can be more unhuman, than to punish an Infant by a cruel operation on a part of its body, done by a bungling Butcher of a Priest! Or what can be more insulting to all-wise Creator, than for a stupid Fool of a Fellow, to presume to correct His workmanship, by finding one superfluous part, and taking that away to reduce the subject to perfection. (Anonymous. A Peep into the Synagogue, or A Letter to the Jews. London, undated.) 

The Joy of Milah

Although it is under attack in Europe and is less popular than it has been US, circumcision remains a time for joy for the many faith communities in which it is practiced. The ritual is often accompanied by feasting and gift-giving, whether it is performed in Muslim or Jewish communities, or by members of African tribes.  The Talmud explains why, for Jews, the ritual is one that is associated with so much joy. It is an explanation that is as simple as it is profound:

שבת קל, א

 תניא רשב"ג אומר כל מצוה שקיבלו עליהם בשמחה כגון מילה דכתיב "שש אנכי על אמרתך כמוצא שלל רב" עדיין עושין אותה בשמחה

It was taught in a Baraisa: Rabban Shimon ben Gamliel says: Any commandment that the Jewish people accepted with joy - like circumcision, as it it written: "I rejoice over your word like one who finds great spoils" [Ps. 119:162]  - they still perform with joy...(Shabbat 130b.)

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Kiddushin 69a ~ Nationality, Class and Caste

קידושין סט, א

 עשרה יוחסים עלו מבבל כהני לויי ישראלי חללי גירי וחרורי ממזירי נתיני שתוקי ואסופי כהני לויי וישראלי מותרין לבא זה בזה לויי ישראלי חללי גירי וחרורי מותרין לבא זה בזה גירי וחרורי ממזירי ונתיני שתוקי ואסופי כולם מותרין לבא זה בזה ואלו הם שתוקי כל שהוא מכיר את אמו ואינו מכיר את אביו אסופי כל שנאסף מן השוק ואינו מכיר לא את אביו ולא אמו אבא שאול היה קורא לשתוקי בדוקי

Ten genealogical classes went up from Babylon: Cohanim (priests) Levi'im (Levites), Israelites, halalim, converts, freedmen, mamzerim, netinim, shethuki and foundlings. Priests, Levites and Israelites may intermarry with each other. Levites, Israelites, halalim, converts, and freedmen may intermarry. Converts and freedmen, mamzerim and netinim, shethuki and foundlings, are all permitted to intermarry. This is the definition of a shethuki: he who knows his mother but not his father; a foundling: he who was found in the streets but does not know his father nor his mother....(Kiddushin 69a)

For the last few pages, the Talmud has been focussed on the status of various classes of Jews, Gentiles, and those in-between.  The last Mishnah of the previous chapter detailed a method devised by Rabbi Tarphon (who lived between the destruction of the Second Temple in 70 CE and the Bar Kochba revolt in 135 CE) to allow the descendants of a mamzer to marry into the Jewish people, and the laws of genealogy continue in this, the last chapter of the last tractate of Nashim. So what is it about class and geneology that makes it so important to our social interactions?  Can science shed any light on the rabbinic obsession with who is in, who is out, who is in-between?

Kinship Selection

Kinship selection  - our favoring of relatives or those most like us - is a fundamental part of evolutionary theory. It is best understood by considering altruistic behavior, which here means "self-sacrifice behavior performed of the benefit of others." If I exhibit altruistic behavior for my offspring - be they chicks or children - then these offspring are more likely to survive and breed. In this way, my altruistic behavior has increased the chances of my genes being carried on to my descendants - which is all that evolution cares about. If I don't exhibit altruistic behavior and just focus on my own needs, I may leave my offspring more vulnerable, and hence less likely to survive. In this way, altruistic behavior, or better, the genes for altruistic behavior, are passed on and give those individuals who demonstrate it a competitive advantage over others. This idea is also true for my siblings and my cousins, who, after all, share some, or a lot, of my DNA.  A great example of this are the sterile worker bees, ants and wasps, who sacrifice themselves so that their kin - their bee, and or wasp cousins - will survive to breed. So looking after those to whom we are closely related is part of our genetic blueprint.  Here evolution acts not on individuals but on groups. The groups in which individuals exhibit altruism are more likely to survive.  We favor those in our group, and are hostile (to varying degrees of course) to those outside of it.  

National Character

Before we look at class within a race or social group, it is worth pausing to think for a moment about how we characterize nationalities. In 2006 researchers from the National Institute on Aging reviewed the stereotypes of several nationalities, which include the sterotype that  views Americans as "rude, arrogant, and self-centered...the Chinese as industrious, Latins as hot-tempered, and Scandinavians as somber." Except that they didn't really call these beliefs stereotypes. Instead, they  referred to "a standard set from a comprehensive taxonomy of personality traits [which] allows comparisons across many different groups. " These perceptions, "and the high inter rater reliabilities (agreement among judges) document that these are indeed shared perceptions of groups— and thus, stereotypes." What is most interesting to learn is that these shared beliefs about a national character are not only held within a culture; there is consensus across cultures. Thus, "the French view of Germans is similar to Germans’ view of themselves, and vice versa." 

Popular thought characterizes the Chinese as industrious, Latins as hot-tempered, and Scandinavians as somber. Although Americans may not have clear ideas about the typical Ethiopian or Indonesian, Ethiopians and Indonesians surely do.
— McCrae R, Terracciano A. National Character and Personality. Current Directions in Psychological Science 2006: 15 (4). 156-161.

The attribution of psychological characteristics to ethnic or racial groups has of course been used to justify genocide and slavery, but as the psychologist Steven Pinker noted,

...the problem is not with the possibility that people might differ from one another, which is a factual question that could turn out one way or the other. The problem is with the line of reasoning that says that if people do turn out to be different, then discrimination, oppression, or genocide would be OK after all. 

So with that caveat, researchers recruited an international team to measure five personality dimensions (each with a further five sub-categories) in 51 cultures across six continents.  And here is what they found:

Multidimensional scaling plot of 51 cultures for the 30 facet scores of the Revised NEO Personality Inventory, standardized across cultures. The vertical axis is maximally aligned with the Neuroticism factor, the horizontal axis with the Extraversio…

Multidimensional scaling plot of 51 cultures for the 30 facet scores of the Revised NEO Personality Inventory, standardized across cultures. The vertical axis is maximally aligned with the Neuroticism factor, the horizontal axis with the Extraversion factor. From McCrae R. and Terracciano A, and 79 others). Personality Profiles of Cultures: Aggregate Personality Traits. Journal of Personality and Social Psychology 2005: 89(3); 420. Hey - where are the Israelis?

In the plot, cultures are arranged such that the closer they appear, the more similar are their personality profiles. For example, the profile for the French closely resembles that of the French Swiss, and is quite different from the profile of Mexicans. "On average," the authors conclude, "the French are relatively high in Neuroticism and Mexicans relatively low." 

The Psychology of Prejudice

In 1906, William Sumner, the country's first professor of sociology (and at Yale, no less!) published his classic work Folkways: A Study of the Sociological Importance of Usages, Manners, Customs, Mores and Morals.  In it, he suggested a role for ethnocenterism, that is to say, a positive sentiment and feeling of superiority towards one's own ingroup:

For Sumner, a strong allegiance to an in-group automatically meant a hostility to those outside:

The relation of comradeship and peace in the we-group and that of hostility and war towards others-groups are correlative to each other. The exigencies of war with outsiders are what make peace inside...Loyalty to the group, sacrifice for it, hatred and contempt for outsiders, brotherhood within, warlikeness without - all grow together, common products of the same situation...

Oxytocin and Ethnocentrism

In 2011 a group of Dutch researchers explored the idea that because ethnocentrism also facilitates within-group trust, cooperation, and coordination, it may be modulated by brain oxytocin, a peptide which has been shown to promote cooperation among in-group members. In a double-blind, placebo-controlled study, men self-administered oxytocin or placebo and privately performed computer-guided tasks to gauge different manifestations of ethnocentric in-group favoritism as well as out-group derogation. Their results, published in published a paper in the widely respected Proceedings of the National Academies of Sciences, found that oxytocin creates intergroup bias because it motivates in-group favoritism and, to a lesser extent, out-group derogation. The researchers suggest that oxytocin has a role in the emergence of intergroup conflict and violence. By my count this is now the bazillionth thing that oxytocin does.  

 

Oxytocin reduces the willingness to sacrifice in-group targets to save a larger collective but not the readiness to sacrifice out-group targets. Results range from 0 to 5 (displayed ± SE). (A) Results for experiment 4 with Arabs as out-group. (B) Re…

Oxytocin reduces the willingness to sacrifice in-group targets to save a larger collective but not the readiness to sacrifice out-group targets. Results range from 0 to 5 (displayed ± SE). (A) Results for experiment 4 with Arabs as out-group. (B) Results for experiment 5 with Germans as out-group. From De Dreu, CK. Greer LL. Van Kleff GA. et al. Oxytocin promotes human ethnocentrism. PNAS 2011:108 (4); 1264.

There are hundreds of scientific papers that study the phenomenon of in-group and out-group dynamics.  Among my favorites are:

For Members Only: Ingroup Punishment of Fairness Norm Violations in the Ultimatum Game (2014) which demonstrated that participants exacted stricter costly punishment on racial in-group than out-group members for marginally unfair game offers. Of course it helps to know how to play ultimatum.

Groupwise information sharing promotes ingroup favoritism in indirect reciprocity (2012) which suggested that ingroup favoritism can emerge when players implement reputation-based decision making and do not favor ingroup members.

Fear Among the Extremes: How Political Ideology Predicts Negative Emotions and Outgroup Derogation (2015), a Dutch study that showed that socio-economic fear, as well as negative political emotions, could be meaningfully predicted by political extremism. No kidding. But the really interesting part of the study is this finding: Political extremists—at both the left and the right—derogated a larger number of societal groups than political moderates did. It would seem that political extremists of any persuasion may be similar to each other psychologically.

Evolution of in-group favoritism (2012) which showed that in-group bias emerges through the co-evolution of group membership and strategy without invoking the mechanism of multi-level selection. Actually I have no idea what this paper is all about, since it included the equation on the right. If you can explain it to me, I would be grateful.

the Mamzer

דברים פרק כג, ג 

'לא יבא ממזר בקהל ה' גם דור עשירי לא יבא לו בקהל ה

In his paper The Attitude toward Mamzerim in Jewish Society in Late Antiquity Meir Bar-Ilan wrote that

The only interpretation accepted as law in Talmudic literature for the verse "No mamzer shall be admitted into the community of the Lord" relates exclusively to the prohibition of marriage. That is, the words "shall not be admitted" were interpreted as a prohibition of an Israelite (and a fortiori Levite and Cohen) to be married to a mamzer (male or female). This is a social separation with only one application (a meaning that is disclosed to the individual only once and at a relatively mature age).

(Meir Bar-Ilan, who teaches history at Bar-Ilan University in Tel Aviv, is a direct descendent of Rabbi Meir Bar-Ilan, (and hence of the Netziv,) after whom Bar-Ilan university was named. In the early 1980s my family hosted him on a visit to London, and it was on that visit that I took him to see the Valmadonna collection.  I wonder if he remembers? I certainly do. Now, where was I?) 

Bar-Ilan also notes that the Mishnah that opens this last chapter of Kiddushin is special because 

it depicts historically the formation of Jewish society in Palestine and its dependence on the previous period in the time of Ezra and the returnees from Babylon. The author of this Mishnah claims - or transmits - a tradition of what occurred centuries earlier. In this matter too this Mishnah has few parallels. Note, immediately after the "historical" heading, the author lists the different levels of Jewish society, a hierarchical list in descending order. Only after this social introduction does he turn to the law - the primary interest of the sages of the Mishnah.

After noting some further textual difficulties, Bar-Ilan suggests that rather than giving a historical accounting, this Mishnah actually expresses a sociological position. In other words, the Mishnah is trying to clarify the social structure of its time, and hence  "...may definitely be designated as a Mishnah of mythological nature, that is, a narrative of the formation of the society known to the narrator." There is a debate in the Mishnah (Yevamot 4:13) as to the precise definition of a mamzer: according to Rabbi Akivah, it is a person born of a relationship that is forbidden in Lev 18: 6-20; according to Shimon Hatimni it is a person born of a union whose punishment is kareth (this would include a person who has intercourse with his menstruating wife); and according to R. Yehoshua it is a person born from a union punishable by execution. These Tanna'im, wrote the scion of the Bar-Ilan family,

"...were engaged not only in a theoretical dispute but ... they represent different approaches in Jewish society. (The first Tanna anonymously represents a more ancient approach whereas Rabbi Simon represents a relatively new approach)...Though there were different opinions regarding the definition of a mamzer, the rabbinic law is seen to restrict the application of the definition of the mamzer to limited individuals...the rabbinic law of the Talmudic period shows a trend to limit the law as applied to the mamzer in two ways: first, in the definition of the mamzer; and second, in the nature and scope of his exclusion from society...

Thus mamzerim were more readily integrated into society, though the prohibition of marriage to them remained in force. That is to say, the social stratification based on ancestry continually weakened as can be seem from the narrowing of the exclusive characteristics of the priests on one hand and abolition - even if only partial - of the discrimination against mamzerim on the other...

Ancient Jewish society was one of many societies that used a caste system. These systems are still prevalent in India (even though discrimination against lower castes is illegal under Article 15 of its constitution), and in Pakistan, Nepal and Southeast Asia. In Korea, the baekjeong are an outcaste group and varieties of castes exit in Africa. In western countries the caste system may not exist, but intermarriage between classes may still be difficult. In 1936 Edward VII had to abdicate as king of Great Britain in order to marry the divorcee Wallis Simpson. Although I am a naturalized American, I am disqualified from being a candidate for President because I am not a natural born citizen. The disqualifications outlined in today's Mishnah differ from these, for they penalize not only the Jew-by-choice, but also the Jewish child whose parents' union was forbidden.  Liberal democratic societies (that is, the WEIRD ones) have mostly left the issues of class and caste behind, leaving some religions with a great deal of work to do.  

No Person except a natural born Citizen, or a Citizen of the United States, at the time of the Adoption of this Constitution, shall be eligible to the Office of President...
— The Constitution of the United States, Article II, Section I, Clause 5

Want more on the mamzer? Click here. and next time, on talmudology, why the best doctors should go to hell.

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