The triumph of justice is the only peace.

I read the other day an account of a meeting between John Knox and John Calvin. Imagine a dialogue between a pestilence and a famine!

Our ignorance is God; what we know is science. When we abandon the doctrine that some infinite being created matter and force, and enacted a code of laws for their government ... the real priest will then be, not the mouth-piece of some pretended deity, but the interpreter of nature.

Do right, not to deny yourself but because you love yourself and because you love others.

The greatest test of courage on earth is to bear defeat without losing heart.

God cannot send to eternal pain a man who has done something toward improving the condition of his fellow-man. If he can, I had rather go to hell than to heaven and keep company with such a god.

The history of intellectual progress is written in the lives of infidels.