Either god should have written a book to fit my brain, or he should have made my brain to fit his book.

If there be gods we cannot help them, but we can assist our fellow men. We cannot love the inconceivable, but we can love wife and child and friend.

the inventor of the plow did more good than the maker of the first rosary - because, say what you will, plowing is better than praying.

Arguments cannot be answered with insults. . . . Kindness is strength. . . . Anger blows out the lamp of the mind. In the examination of a great and important question, every one should be serene, slow-pulsed, and calm.

Suppose, however, that God did give this law to the Jews, and did tell them that whenever a man preached a heresy, or proposed to worship any other God that they should kill him; and suppose that afterward this same God took upon himself flesh, and came to this very chosen people and taught a different religion, and that thereupon the Jews crucified him; I ask you, did he not reap exactly what he had sown? What right would this god have to complain of a crucifixion suffered in accordance with his own command?

I am anxious to give away information, for it is only by giving it away that you can keep it. When you have told it, you remember it. It is with information as it is with liberty, the only way to be dead sure of it is to give it to other people.

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.