Arguments cannot be answered by personal abuse; there is no logic in slander, and falsehood, in the long run, defeats itself.

Grant others the same rights as you claim for yourself.

The first step is for man to cease to be the slave of man. The second, is to cease to be the slave of the monsters of his own creation, the ghosts and phantoms of the air.

I would rather that we all should go to eternal chaos, to black and starless night, than that just one soul should suffer eternal agony.

No one, in the world's whole history, ever attempted to substantiate a truth by a miracle. Truth scorns the assistance of miracle. Nothing but falsehood ever attested itself by signs and wonders. No miracle ever was performed, and no sane man ever thought he had performed one, and until one is performed, there can be no evidence of the existence of any power superior to, and independent of nature.

When I became convinced that the universe is natural, that all the ghosts and gods are myths, there entered into my brain, into my soul, into every drop of my blood the sense, the feeling, the joy of freedom. The walls of my prison crumbled and fell. The dungeon was flooded with light and all the bolts and bars and manacles became dust.

When passions and appetites are stronger than the intellect, men are savages; when the intellect governs the passions, when the passions are servants, men are civilized. The people need education - facts - philosophy.