Heresy is a cradle; orthodoxy a coffin.

This is my creed: Happiness is the only good; reason the only torch; justice the only worship, humanity the only religion, and love the only priest.

If a man really believes that God once upheld slavery; that he commanded soldiers to kill women and babes; that he believed in polygamy; that he persecuted for opinion's sake; that he will punish forever, and that he hates an unbeliever, the effect in my judgment will be bad. It always has been bad. This belief built the dungeons of the Inquisition. This belief made the Puritan murder the Quaker.

Ignorance worships mystery; reason explains it; the one grovels, the other soars.

The man who invented the telescope found out more about heaven than the closed eyes of prayer ever discovered.

Nothing but truth is immortal.

They say that when god was in Jerusalem he forgave his murderers, but now he will not forgive an honest man for differing with him on the subject of the Trinity. They say that God says to me, "Forgive your enemies." I say, "I do;" but he says, "I will damn mine." God should be consistent. If he wants me to forgive my enemies he should forgive his. I am asked to forgive enemies who can hurt me. God is only asked to forgive enemies who cannot hurt him. He certainly ought to be as generous as he asks us to be.