WARREN: We both stand in a relationship of faith. You have faith that there is no God. In 1974, I spent the better part of a year living in Japan, and I studied all the world religions. All of the religions basically point toward truth. Buddha made this famous statement at the end of his life: "I'm still searching for the truth." Muhammad said, "I am a prophet of the truth." The Veda says, "Truth is elusive, it's like a butterfly, you've got to search for it." Then Jesus Christ comes along and says, "I am the truth." All of a sudden, that forces a decision.

HARRIS: Many, many other prophets and gurus have said that.

WARREN: Here's the difference. Jesus says, "I am the only way to God. I am the way to the Father." He is either lying or he's not.