He who thinks and thinks for himself, will always have a claim to thanks; it is no matter whether it be right or wrong, so as it be explicit. If it is right, it will serve as a guide to direct; if wrong, as a beacon to warn.

Nature has placed mankind under the government of two sovereign masters, pain and pleasure... they govern us in all we do, in all we say, in all we think: every effort we can make to throw off our subjection, will serve but to demonstrate and confirm it.

Reputation is the road to power

As to the evil which results from censorship, it is impossible to measure it, because it is impossible to tell where it ends.

...the rarest of all human qualities is consistency.

Nature has placed mankind under the government of two sovereign masters, pain and pleasure.

Prose is when all the lines except the last go on to the end. Poetry is when some of them fall short of it.