The evils of the caste system are regularly expounded in contemporary writings. In The Open Society and Its Enemies, Karl Popper argued that Plato’s ideal state, with it three-tier structure, is totalitarian. Yet, as others have noted, Plato's ideal represents an improvement upon the rigid caste structure that characterized ancient societies. Plato suggested that some particularly gifted individuals should be trained to work outside of their caste. This was a radical idea for his time (B.C. 428-347). The egalitarian nature of American society makes castes anathema. We react strongly to perceived or real limitations of our freedom of choice. On...