have differed in the degree to which they accept general revelation as a basis for knowing God. In keeping with Thomas Aquinas (1225–1274), Catholics hold to a view that natural theology can construct a definable body of knowledge about God with its own sources, principles, and methods based on the application of reason to general revelation. Specifically, natural theology has developed several proofs for the existence of God: cosmological arguments (from the existence of the world), ontological