Sam Harris is the author of the bestselling books The End of Faith, Letter to a Christian Nation, The Moral Landscape, Free Will, Lying, and Waking Up. The End of Faith won the 2005 PEN Award for Nonfiction. His writing and public lectures cover a wide range of topics—neuroscience, moral philosophy, religion, spirituality, violence, human reasoning—but generally focus on how a growing understanding of ourselves and the world is changing our sense of how we should live.  Mr. Harris and his work have been discussed in