Sidney Hook is considered by many to be America's most influential philosopher. An earlier defender of Marxism, he became its most persistent critic, especially of its totalitarian and revolutionary manifestations. A student of John Dewey's pragmatism, Sidney Hook has written extensively about most of the live moral, social and political issues of the day. He has known and debated many of the leading thinkers of the twentieth century, such as Max Eastman, Bertrand Russell, Albert Einstein, Jacques Maritain, Mortimer Adler, Robert Hutchins, Paul Tillich, Noam Chomsky, and John Kenneth Galbraith.
Paul Kurtz (1925-2012), professor emeritus of philosophy at the State University of New York at Buffalo and a fellow of the American Association for the Advancement of Science, was the author or editor of more than fifty books, including "The Transcendental Temptation, The Courage to Become," and "Embracing the Power of Humanism," plus nine hundred articles and reviews. He was the founder and chairman of Prometheus Books, the Institute for Science and Human Values, the Center for Inquiry, the Council for Secular Humanism, and the Committee for Skeptical Inquiry. He appeared on many major television and radio talk shows and has lectured at universities worldwide. "From the Trade Paperback edition."