The fortieth anniversary of 1968 is upon us. What, with the wisdom of hindsight, should we think of that convulsive moment? Everywhere there are nostalgic backward glances: Youth! Freedom! Sex! Were not the Sixties the Last Good Time, an era of hope, idealism, the promise of emancipation from—well, from everything? Some think so. “Only a few periods in American history,” The New York Times intoned in an editorial, have seen such a rich fulfillment of the informing ideals of personal freedom and creativity that lie at the heart of the American intellectual tradition. . . . The 60’s spawned a new morality-based politics that emphasized the individual’s responsibility to speak out ...