After the unexpected collapse of the Soviet Union, the categories of "Left" and "Right" continue to be used to describe political ideologies, despite their historic ambiguity and a shared utopian root. The idealistic belief that a perfect world is possible continues to dwell on existential hope for messianic salvation. This belief lay at the heart of the apocalyptic narratives of the Bible and reflects what the Greeks called hubris, a fatal and destructive form of conceit. This conceit reemerged in the Gnostic sects of early Christianity, then again in medieval millenarianism, Jacobinism,...

In calling America "the almost chosen nation," Abraham Lincoln invoked at once the Old Testament and the Founders' belief in the two covenantal communities' common ideal: equal liberty. The Declaration of Independence proclaimed that ideal. Our Constitution instituted it. Although it took the Civil War to abolish the original sin of slavery, equal freedom defined the nation's philosophical foundation. Beginning late in the nineteenth century, however, that vision of liberty under constitutionally limited government mutated into progressivism. An aggressive mix of collectivism and scientism,...