Today almost half of all Americans decline to define themselves as either "liberal" or "conservative." In fact, modern liberalism and conservatism seem hopelessly fragmented ideologies. Liberals claim to believe in individual freedom yet advocate a more collectivistic approach to government and an increasingly paternalistic role for the state. Conservatives are hopelessly divided between two incompatible ideals--the highly individualistic, limited-state philosophy of classical liberalism and an older, more collectivistic tradition of cultural conservatism that holds government responsible for...