"We have just enough religion to make us hate, but not enough to make us love one another."

"Censorship is the tool of those who have the need to hide what they fear to show."

"I am not concerned to prove the justice of my opinion, but to show its usefulness."

"When a true genius appears in the world, you may know him by this sign, that the dunces are all in confederacy against him."

"The three grand enemies of human happiness are public envy, civil discord, and religious faction."