Orthodoxy cannot afford to put out the fires of hell.

The inspiration of the Bible depends upon the ignorance of the gentleman who reads it.

The idea that there is a God who rewards and punishes, and who can reward, if he so wishes, the meanest and vilest of the human race, so that he will be eternally happy, and can punish the best of the human race, so that he will be eternally miserable, is subversive of all morality.

Intellectual liberty is the air of the soul, the sunshine of the mind, and without it, the world is a prison, the universe is a dungeon.

Every man who expresses an honest thought is a soldier in the army of intellectual liberty.

Courage without conscience is a wild beast.

We are all children of the same mother, and the same fate awaits us all. We, too, have our religion, and it is this: Help for the living-Hope for the dead.