The knowledge of God is the cause of things. For the knowledge of God is to all creatures what the knowledge of the artificer is to things made by his art.
Thomas AquinasGod himself would not permit evil in this world if good did not come of it for the benefit and harmony of the universe.
Thomas AquinasLove works in a circle, for the beloved moves the lover by stamping a likeness, and the lover then goes out to hold the beloved inreality. Who first was the beginning now becomes the end of motion.
Thomas AquinasGiven the sin of impiety through which they [the Romans] sinned against the divine nature [by idolatry], the punishment that led them to sin against their own nature followed.... I say, therefore, that since they changed into lies [by idolatry] the truth about God, He brought them to ignominious passions, that is, to sins against nature; not that God led them to evil, but only that he abandoned them to evil.
Thomas Aquinas