Donald T. Williams on Anscombe's Final Word on Lewis & Naturalism
Elizabeth Anscombe's major philosophical work has been overshadowed for many by one event: her debate with C. S. Lewis at the Oxford Socratic Club in 1947 over his "argument from reason" for the self-refuting character of naturalism, as made in the first edition of his book Miracles. At the least, it was a fairly significant event. Lewis had argued that if naturalism were true, it would remove all reason for believing that naturalism is true, because it would reduce all thoughts to chemical reactions in our bra . . .