Article 2

In the second article, the question is raised whether some have always judged this to be infallibly proved.

To this I respond that the books of the philosophers abound with such proofs, which they hold to be demonstrations. It also seems to me that one is able to prove demonstratively that celestial bodies are moved by some intellect—whether by God immediately or by means of the angels. But that he moves them by means of the angels is more fitting with the order of things, which Dionysius declared to be unfailing; namely, that in the usual course of events, inferior things are directed by God through intermediaries.