A Catholic is a person who has plucked up courage to face the incredible and inconceivable idea that something else may be wiser than he is.

If a man does not talk to himself, it is because he is not worth talking to.

"Are you a devil?" "I am a man," answered Father Brown gravely; "and therefore have all devils in my heart."

It is very good for a man to talk about what he does not understand; as long as he understands that he does not understand it.

Every remedy is a desperate remedy. Every cure is a miraculous cure. Curing a madman is not arguing with a philosopher; it is casting out a devil.

The aesthete aims at harmony rather than beauty. If his hair does not match the mauve sunset against which he is standing, he hurriedly dyes his hair another shade of mauve. If his wife does not go with the wall-paper, he gets a divorce.

Theology is simply that part of religion that requires brains.