C.S. Lewis
A professor of Medieval and Renaissance Literature at both Cambridge and Oxford, C.S. Lewis was one of the most famous public intellectuals in the 20th century. He is best known for his children's books (The Chronicles of Narnia) and his Christian apologetics (Mere Christianity), but he also wrote widely, examining things like literary criticism (An Experiment in Criticism), the existence of a universal moral code (The Abolition of Man), the nature of physical laws (Miracles), and the types of love (The Four Loves).