Samuel Benjamin Harris (born April 9, 1967) is an American philosopher, neuroscientist, author, and podcast host. His work touches on a range of topics, including rationality, religion, ethics, free will, neuroscience, meditation, psychedelics, philosophy of mind, politics, terrorism, and artificial intelligence. Harris came to prominence for his criticism of religion, and Islam in particular, and is known as one of the "Four Horsemen" of New Atheism, along with Richard Dawkins, Christopher Hitchens, and Daniel Dennett.
Harris's first book, The End of Faith (2004), won the PEN/Martha Albrand Award for First Nonfiction and remained on The New York Times Best Seller list for 33 weeks. Harris has since written six additional books: Letter to a Christian Nation in 2006, The Moral Landscape: How Science Can Determine Human Values in 2010, the long-form essay Lying in 2011, the short book Free Will in 2012, Waking Up: A Guide to Spirituality Without Religion in 2014, and (with British writer Maajid Nawaz) Islam and the Future of Tolerance: A Dialogue in 2015. Harris's work has been translated into over 20 languages.