John Cleese; Peter Brook; Robert Wright

John Cleese reflects on his creative process, Monty Python's universal popularity, and what inspired him to write "Life and How to Survive It." Director Peter Brook describes his friendship with neurologist Oliver Sacks, whose book inspired him to create his play, "The Man Who," and reflects on his creative process and his career. Author Robert Wright explains the concept of evolutionary psychology, which is the topic of his book, "The Moral Animal: Why We Are the Way We Are."