Clive Staples Lewis (29 November 1898 – 22 November 1963) was a British writer and lay theologian. He held academic positions in English literature at both Oxford University (Magdalen College, 1925–1954) and Cambridge University (Magdalene College, 1954–1963). He is best known for his works of fiction, especially The Screwtape Letters, The Chronicles of Narnia, and The Space Trilogy, and for his non-fiction Christian apologetics, such as Mere Christianity, Miracles, and The Problem of Pain.
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I have learned that no matter how much I learn about anything, I am always at 'the threshold of ignorance,' a frontier of inner and outer awareness (and lack of it) in which some things have become second nature, some things are new and a little uncomfortable, and some things are a complete mystery.