Sam Harris is a neuroscientist and philosopher best known for his books and speeches promoting adopting a rational and evidence-based understanding and structuring of human affairs. This movement is often referred to as the New Atheism movement. Sam is considered one of the "Four Horsemen of Atheism" -- company he shares with Richard Dawkins, Daniel Dennett and Christopher Hitchens. Sam has authored five New York Times Best Sellers . Sam's books include The End of Faith, Letter to a Christian Nation, The Moral Landscape, Free Will, Lying, Waking Up, and Islam and the Future of Tolerance.