| | Different breeds of animals exhibit different behavioral characteristics due to differences in nature, but different breeds of humans don't because humans reason and consciously value...so the argument goes. That's not my argument. I would never use such demeaning language as "different breeds of humans, as if human beings were no different from animals and could therefore be classified in the same way. I don't deny, however, that individual differences in human physiology give rise to differences in behavior. They certainly do. Individuals with higher levels of testosterone, for example, behave differently in certain respects from individuals with lower levels. That's evident if only in the differences between men and women. But "reason" and "value" divorced from physiology are floating abstractions. Mind does not transcend brain. I agree. Every individual posseses a unique brain physiology and a unique psychological nature. Individuals who share similar evolutionary origins will share more brain and biochemical phenotypes in common with each other than they will with individuals from divergent geographic ancestral lineages. On average, that's true, but these differences are not universal within a given race. They are simply average differences in behavior. Even though both Africans and Europeans can reason, they can't use reason to transcend the differences in their respective biologically given natures. Skin color tends to co-vary with brain size, testosterone levels, and other traits linked to behavior. Except in cases where it doesn't. You talk as if the differences you refer to were universal within a given race or ethnicity. Again, you can't lump all members of a given race into one undifferentiated category. In many species, melanin-based coloration is found to be pleiotropically linked to behavior. We review animal studies that have found darker pigmented individuals average higher amounts of aggression and sexual activity than lighter pigmented individuals. We hypothesize that similar relationships between pigmentation, aggression, and sexuality occur in humans....Darker individuals average higher levels of crime, sexual activity including HIV/AIDS, and lower IQ. Once again, these differences refer not to individuals but to groups of individuals, because there are light skinned individuals who are criminals and darker-skinned individuals who are rights-respecting and productive. In a previous post (#150), I cited the children of black immigrants from the West Indies who have a higher average income and better representation in the professions than either their parents, the national average or Anglo-Saxons. These statistics are based on data from 1969 incomes -- two years before the 1971 federal guidelines mandating quota hiring, and so cannot be explained as effects of affirmative action. ....across 100 countries, the rate of murder, rape, and serious assault is four times higher in African and Caribbean countries than elsewhere in the world. In violent crimes per 100,000 people, the rate for African countries was 149; for European, 42; and for Asian, 35. These results are similar to those carried out on other data sets from INTEROL and the United Nations. They show the Black overrepresentation in violent crime to be a worldwide phenomenon. Be that as it may, I would question your apparent assumption that a change in philosophy and cultural values is insufficient to reduce or eliminate this kind of criminal behavior -- that physiology is destiny. If I thought it were, I would abandon philosophy as having any power to change the world. The idealists' conception of reason as a universal equalizing attribute that negates physiological differences among human populations rests on an implicit mind/body dichotomy. Well, that's not my view. I don't think that the capacity for reason negates physiological differences. The equalitarian hypothesis is also refuted consistently by the empirical evidence. Rather than being an equalizing force, reason is better conceived of as a phenotypic expression that, like all others, varies among individuals and among groups of individuals with shared phenotypic similarities. What varies is intellectual capacity, not the ability to reason or to grasp and adhere to a rational philosophy.
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