The mind commands the body, and it obeys forthwith; the mind commands itself, and is resisted. The mind commands the hand to be moved, and such readiness is there that the command is scarce to be distinguished from the obedience. Yet the mind is mind, and the hand is body. The mind commands the mind to will, and yet, though it be itself, it obeyeth not. Whence this monstrous thing? and why is it?

I would not believe in the Gospel, if the authority of the Catholic Church did not bid me to do so.

There is a God-shaped vacuum in every man that only Christ can fill.

Why is it that man desires to be made sad, beholding doleful and tragical things, which yet himself would by no means suffer?

Although among heretics and schismatics there is the same Baptism, nevertheless, the remission of sins is not operative among them because of the very rottenness of discord and wickedness of dissension ... Baptism was in them, but it did not profit them outside the Church ... Outside the Church, Baptism works death because of discord.

We both exist and know that we exist, and rejoice in this knowledge.

No one indeed believes anything unless he has first thought that it it to be believed.