C.S. Lewis may be the most celebrated Christian apologist of our time. His reputation for thoughtfulness and eloquence of speech has earned him many admirers even amongst non-believers. For this episode the doubtcasters consider the main argument of his most popular apologetic work, Mere Christianity. Lewis claims there is a Moral Law, known to all human beings, which must be the creation of a divine mind. DJ Grothe (The host of CFI�s radio show and podcast Point of Inquiry) disagrees. Though an admirer of Lewis, Grothe sees no evidence of a Moral Law. Nevertheless, he believes we can still have an objective basis for our ethics without it. Reasonable Doubts: Your skeptical guide to religion offering news and commentary of interest to skeptics, atheists, humanists, apologists looking for a challenge and freethinkers of all persuasions.