In the midst of World War II, Oxford University Press published a short book by a middle-aged don who used the way in which English was taught in secondary school to launch a defense of the idea that there is objective moral truth, that it contains deep content, and that we can know it. The author was a Fellow of Magdalen College, Oxford, where he taught literature. But C.S. Lewis had also acquired a formidable reputation as a Christian apologist, himself having embraced atheism at age 15 before returning first to theism in 1929 and then his Anglican faith of the orthodox variety in 1931.