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 Aquinas (c. 1225–1274), Italian philosopher, theologian. trans. by Anton C. Pegis, The Basic Writings of St. Thomas Aquinas. Summa Theologiae, I, Pt. I, q. 14, art. 8 (c. 1077-1078).