"Racism" is the doctrine that one group of men is morally or mentally superior to another and that this superiority arises out of inherited biological differences. Of the modern theories aimed at dividing one portion of humanity from another, it is the most morally reprehensible and the least substantially based. Nationalism has a certain rationale in the existence of nation-states, and it does not, at least not necessarily, imply the inferiority of one nation to another. The various doctrines of the struggle between economic classes can point to a wide assortment of empirical evidence in support of their claims; in the Marxist version the exploiting capitalist is as much a victim of the capitalist system as is the exploited proletarian, and the eventual overcoming of all class distinctions is a moral aim as well as a prophesied event. The tenets of racism, however, lead to moral conclusions that...