Just as a white man has different skin color from a black man, so it is quite possible that he also has a somewhat different mind. But given what we know of evolution, it is not very likely. The evolutionary pressures that have shaped the human mind--principally competitive relations with kin members, tribal allies, and sexual partners--are and have been the same for white and black men and were at work before the ancestors of whites left Africa 100,000 years ago. While skin color is affected by things such as climate, which differs markedly between Africa and northern Europe, the shape of the mind is affected only very marginally by nonhuman problems such as what kind of game to hunt or how to keep warm or cool. Infinitely more important is how to deal with fellow human beings, and that is the same problem everywhere.