David Theroux, Founder and President of the Independent Institute, President of the C.S. Lewis Society of California, and friend of LibertarianChristians.com has recently published a three-part series on the political philosophy of C.S. Lewis entitled “C.S. Lewis on Mere Liberty and Statism.” I highly recommend these articles for your reading (see the links following my synopsis).
Lewis, of course, is well-respected among Christians for his excellent stories and compelling explication of theology. Turns out he also favored liberty as a defining characteristic of civilized society. He reaches this conclusion through a consistent application of natural law.