For more than half a century, historians, sociologists, journalists, psychologists, political scientists, and philosophers have studied, probed, analyzed, pondered, attacked, lauded, and attempted to explain that force that is American political conservatism. Sometimes this avalanche of books, articles, and op-eds has veered weirdly into the realms of psychobabble (once a group of left-leaning psychiatrists, without ever meeting or talking to him, diagnosed conservative Senator Barry Goldwater, the 1964 Republican nominee for president, as a megalomaniac); at other times books focused on relatively minor pieces of the conservative mosaic, creating straw men against whom they proceeded to rail. Occasionally, conservative insiders have attempted to put their own spin on defining what conservatism is, or at least what it once was.