I am a believer in liberty. That is my religion — to give to every other human being every right that I claim for myself, and I grant to every other human being, not the right — because it is his right — but instead of granting I declare that it is his right, to attack every doctrine that I maintain, to answer every argument that I may urge — in other words, he must have absolute freedom of speech.

The trial of Charles B. Reynolds for blasphemy (1887)