Man, once surrendering his reason, has no remaining guard against absurdities the most monstrous. . . .

Liberty is the great parent of science and of virtue; and a nation will be great in both in proportion as it is free.

The clergy converted the simple teachings of Jesus into an engine for enslaving mankind and adulterated by artificial constructions into a contrivance to filch wealth and power to themselves...these clergy, in fact, constitute the real Anti-Christ.

Man is fed with fables through life, and leaves it in the belief he knows something of what has been passing, when in truth he knows nothing but what has passed under his own eyes.

I would rather have newspapers without a government than a government without newspapers.

I have done for my country and for all mankind, all that I could do, and I now resign my soul, without fear, to my God - my daughter to my country.

There is nothing more unequal than the equal treatment of unequal people.