More than two hundred years ago, Dr. William Paley wrote a series of books that marshaled evidence for the Christian faith. His books were often required reading at major institutions of learning. Believers and unbelievers alike wrestled with Paley's arguments and his compelling presentation of them. Paley's Natural Theology was one of those books. In it, he showed from biology and human anatomy that the argument for design was a clear and self-evident inference from the facts, and from that point of departure proposed that only a designer God could adequately account for those facts. His...