In a world of skepticism, is it still possible to believe? Tim Keller, speaker, author, and senior pastor of Redeemer Presbyterian Church in New York City, addresses the challenges posed to belief in the contemporary world. Drawing upon the arguments laid out in his book, The Reason for God, Keller argues that belief is here to stay. From The Veritas Forum at the University of California, Berkeley, 2008. Followed by a question and answer session.