Those we call the ancients were really new in everything.

Happiness can be found neither in ourselves nor in external things, but in God and in ourselves as united to him.

According to the doctrine of chance, you ought to put yourself to the trouble of searching for the truth; for if you die without worshiping the True Cause, you are lost. "But," say you, "if He had wished me to worship Him, He would have left me signs of His will." He has done so; but you neglect them. Seek them, therefore; it is well worth it.

As we speak of poetical beauty, so ought we to speak of mathematical beauty and medical beauty. But we do not do so; and that reason is that we know well what is the object of mathematics, and that it consists in proofs, and what is the object of medicine, and that it consists in healing. But we do not know in what grace consists, which is the object of poetry.

Love has reasons which reason cannot understand.

Evil is easy, and has infinite forms.

Contradiction is not a sign of falsity, nor the lack of contradiction a sign of truth.