The most famous student of Aristotle in the medieval West was St. Thomas. He had to demonstrate if and how Aristotle could be used on behalf of the Faith, and whether this use was in union with or contrary to the comments on the Greek philosopher's work by Arabs like Averroes. Dr. William Marra critiques St. Thomas's proofs for the existence of God and contrasts them with Augustinian and Platonic arguments. Taken from: Christianity in the High Middle Ages - 1995 VonHildebrand Institute