Abstract

Original: Peter van Inwagen, “C. S. Lewis’s Argument against Naturalism”, The Journal of Inklings Studies 1, no. 2 : 25–40. Translation with permission of the author. This paper is an evaluation of the argument of Chapter 3 of the second edition of C. S. Lewis’s Miracles. This argument is an attempt to demonstrate that naturalism implies that none of our beliefs is based on reasoning — a “cardinal difficulty for naturalism,” since a belief in naturalism that was not based on reasoning would be irrational. The conclusion of the paper is Lewis’s argument fails to show that naturalism implies that none of our beliefs is based on reasoning.