The easy confidence with which I know another man's religion is folly teaches me to suspect that my own is also.

Experience, the only logic sure to convince a diseased imagination and restore it to rugged health.

The worst thing you can do to a man is to tell him he can have what he wants.

The citizen who sees his society's democratic clothes being worn out and does not cry it out, is not a patriot, but a traitor.

We could use up two Eternities in learning all that is to be learned about our own world and the thousands of nations that have arisen and flourished and vanished from it. Mathematics alone would occupy me eight million years.

Nothing incites to money-crimes like great poverty or great wealth.

It takes a thousand men to invent a telegraph, or a steam engine, or a phonograph, or a photograph, or a telephone or any other important thing-and the last man gets the credit and we forget the others. He added his little mite - that is all he did. These object lessons should teach us that ninety-nine parts of all things that proceed from the intellect are plagiarisms, pure and simple; and the lesson ought to make us modest. But nothing can do that.