In many ways, C.S. Lewis was both a man ahead of and behind the times. His approach to science and theology was based upon his professorial comprehension of the Medieval world and what he called "The Model." In this week's episode, Drs. Crystal and David C. Downing sit down with Producer Aaron Hill to discuss Lewis's last non-fiction book, The Discarded Image (1964). Based on a series of lectures and published posthumously, David, Crystal, and Aaron discuss how the treasures and insights contained within this often overlooked book by C.S. Lewis on the cosmology and worldview constructed by great thinkers and writers of the Middle Ages.