Insolence is not logic; epithets are the arguments of malice.

Creationists use facts the same way a drunk uses a lightpost: for support instead of illumination

If we should put god in the Constitution there would be no room left for man.

Liberty is the breath of progress.

When your little child tells a lie, do not rush at him as though the world were about to go into bankruptcy. Be honest with him. A tyrant father will have liars for his children; do you know that? A lie is born of tyranny upon the one hand and weakness upon the other, and when you rush at a poor little boy with a club in your hand, of course he lies.

It seems to me impossible for a civilized man to love or worship, or respect the God of the Old Testament. A really civilized man, a really civilized woman, must hold such a God in abhorrence and contempt... In the New Testament, death is not the end, but the beginning of punishment that has no end. In the New Testament the malice of God is infinite and the hunger of his revenge eternal... This frightful dogma, this infinite lie, made me the implacable enemy of Christianity. The truth is that this belief in eternal pain has been the real persecutor.

It cannot be too often repeated, that truth scorns the assistance of miracle.