"[A] superb book. . . . In this tour d'horizon, as deep as it is wide, Wolin refuses to be impressed by the glamour of extremity. He shines light into many dark corners where intellectual fraud, self-deception, and hauteur passed for liberty during a murderous century. Talk about genealogy! Unreason will never be the same."--Todd Gitlin, Columbia University "[A] lively, learned, and wide-ranging work."--Choice "Absolutely entrancing. . . . [A] wide-ranging yet subtle consideration of the intellectual's abiding fascination with absolutism. . . . [A] perceptive, compelling and invaluable document."--John Banville, Irish Times "An indispensable book. . . . [A]nother important installment in what has become one of the major intellectual enterprises of our time: Richard Wolin's principled defense of liberalism against its most sophisticated enemies."--Adam Kirsch, New York Sun