Catechism of the Catholic Church

The truth that God is at work in all the actions of his creatures is inseparable from faith in God the Creator. God is the first cause who operates in and through secondary causes: "For God is at work in you, both to will and to work for his good pleasure." Far from diminishing the creature's dignity, this truth enhances it. Drawn from nothingness by God's power, wisdom, and goodness, it can do nothing if it is cut off from its origin, for "without a Creator the creature vanishes." Still less can a creature attain its ultimate end without the help of God's grace. (970)