Nature is an infinite sphere of which the center is everywhere and the circumference nowhere.

There is a God-shaped vacuum in every heart.

The philosophers talk to you about the dignity of man, and they tempt you to pride, or they talk to you about the misery of man, and they tempt you to despair.

Without the knowledge of our wretchedness, the knowledge of God creates pride. With it, the knowledge of God creates despair. The knowledge of Christ offers a third way, because in him we find both God and our wretchedness.

Imagination is the deceptive part in man, the mistress of error and falsehood.

We know then the existence and nature of the finite, because we also are finite and have extension. We know the existence of the infinite and are ignorant of its nature, because it has extension like us, but not limits like us. But we know neither the existence nor the nature of God, because he has neither extension nor limits.

When we see an effect happen always in the same manner, we infer that it takes place by a natural necessity; as, for instance, that the sun will rise to morrow; but nature often deceives us, and will not submit to its own rules.