There must be must be a first mover existing above all – and this we call God.

Better to illuminate than merely to shine; to deliver to others contemplated truths than merely to contemplate.

God should not be called an individual substance, since the principle of individuation is matter.

A song is the exultation of the mind dwelling on eternal things, bursting forth in the voice.

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.

The happy man in this life needs friends.

A man does not always choose what his guardian angel intends.