The old lady who said there must be a devil, else how could they make pictures that looked exactly like him, reasoned like a trained theologian - like a doctor of divinity.

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.

Intellectual liberty [is] the right to think right and the right to think wrong. Thought is the means by which we endeavor to arrive at truth.

Whoever imagines himself a favorite with God holds others in contempt.

Whoever saw an angel barefooted?

If, with all the time at my disposal, with all the wealth of the resources of this vast universe, to do with as I will, I could not produce a better scheme of life than now prevails, I would be ashamed of my efforts and consider my work a humiliating failure.

We need men with moral courage to speak and write their real thoughts, and to stand by their convictions, even to the very death.