All men's miseries derive from not being able to sit in a quiet room alone.

I know whom I have believed.

The two principles of truth, reason and senses, are not only both not genuine, but are engaged in mutual deception. The senses deceive reason through false appearances, and the senses are disturbed by passions, which produce false impressions.

If we submit everything to reason our religion will be left with nothing mysterious or supernatural. If we offend the principles of reason our religion will be absurd and ridiculous . . . There are two equally dangerous extremes: to exclude reason, to admit nothing but reason.

Men never do evil so completely and cheerfully as when they do it from religious conviction.

Eloquence; it requires the pleasant and the real; but the pleasant must itself be drawn from the true.

The exterior must be joined to the interior to obtain anything from God, that is to say, we must kneel, pray with the lips, and soon, in order that proud man, who would not submit himself to God, may be now subject to the creature.