Peter Kreeft likes to argue. He has been Professor of Philosophy at Boston College for over 45 years, and has written over 60 books in philosophy and theology, including Socratic Logic, the only complete Aristotelian (common-sense, ordinary-language) logic textbook in print; Summa of the Summa and A Shorter Summa on St. Thomas's Summa Theologiae; and many Socratic dialogues in which Socrates meets Jesus, Machiavelli, Marx, Sartre, Descartes, Hume, and Kant. All of them can be understood by non-philosophers as well as philosophers; that is why he is not a famous philosopher.