"The greatest and noblest pleasure which we have in this world is to discover new truths, and the next is to shake off old prejudices."

"All religions must be tolerated... for every man must get to heaven in his own way."

"If my soldiers were to begin to think, not one of them would remain in the army."

"Religion is the idol of the mob; it adores everything it does not understand."

"What is the good of experience if you do not reflect?"

"I begin by taking. I shall find scholars later to demonstrate my perfect right."

"He who defends everything defends nothing."

"My people and I have come to an agreement which satisfied us both. They are to say what they please, and I am to do what I please."