Explains how the natural world arose without a designer and challenges the basic assumptions of world religions to argue that faith is not a necessary component of good behavior.

A preeminent scientist asserts the irrationality of belief in God and the grievous harm religion has inflicted on society from the Crusades to 9/11. He critiques God in all his forms, from the sex-obsessed tyrant of the Old Testament to the more benign (but still illogical) Celestial Watchmaker favored by some Enlightenment thinkers. He eviscerates the major arguments for religion and demonstrates the supreme improbability of a supreme being. He shows...