"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 is suggesting that the knowledge of God is the source of all things. He is comparing the understanding of God to the understanding of an artificer, or an artisan. Simply as an artisan knows how to create something, God knows how to produce deep space and all that remains in it. Aquinas is suggesting that God is the supreme developer, and that all things are created through His understanding. He is also recommending that the knowledge of God is essential for comprehending the universe and all that remains in it. Aquinas is emphasizing the value of understanding God and His knowledge in order to understand the world around us. He is suggesting that the knowledge of God is the structure of all things, which it is important for understanding the universe.