Final answer:
Thomas Aquinas provided five proofs for the existence of God based on Aristotelian metaphysics, with the Argument from Motion being the most manifest. The 'truth of faith' pertains to the acceptance of divine revelation, and Aquinas critiques Anselm's Ontological Argument in his works.
Step-by-step explanation:
St. Thomas Aquinas is renowned for his Five Proofs for the Existence of God, which are based on Aristotelian metaphysics. These proofs are:
- The Argument from Motion (Unmoved Mover)
- The Argument from Causation (First Cause)
- The Argument from Necessity (Necessary Being)
- The Argument from Degree (Absolute Being)
- The Teleological Argument (Grand Designer)
Among these, the Argument from Motion is often considered more manifest because it is directly observable in the world. The 'truth of faith' according to Aquinas refers to truths that transcend human reason but are accepted on the divine authority of revelation. In article 3, objection 2, Aquinas is critiquing Anselm's Ontological Argument, which posits that the concept of God inherently includes existence.