The God Delusion is a 2006 book by British evolutionary biologist and ethologist Richard Dawkins. In The God Delusion, Dawkins contends that a supernatural creator, God, almost certainly does not exist, and that belief in a personal god qualifies as a delusion, which he defines as a persistent false belief held in the face of strong contradictory evidence. He is sympathetic to Robert Pirsig's statement in Lila (1991) that "when one person suffers from a delusion it is called insanity. When many people suffer from a delusion it is called religion." In the book, Dawkins explores the relationship between religion and morality, providing examples that discuss the possibility of morality existing independently of religion and suggesting alternative explanations for the origins of both religion and morality.