"There are,' said Curval, 'but two or three crimes to perform in this world, and they, once done, there's no more to be said; all the rest is inferior, you cease any longer to feel."

"The idea of God is the sole wrong for which I cannot forgive mankind."

"One is never so dangerous when one has no shame, than when one has grown too old to blush."

"There is no more lively sensation than that of pain; its impressions are certain and dependable, they never deceive as may those of the pleasure women perpetually feign and almost never experience."

"The only way to arrive at the truth is through the most profound errors."