I am not one of those who in expressing opinions confine themselves to facts.

You cant reach old age by another man's road, my habits protect my life but they would assassinate you

I would not rob you of your food or your clothes or your umbrella, but if I caught your German out I would take it. But I don't study any more,- I have given it up.

The less a man knows the bigger the noise he makes and the higher the salary he commands.

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.

Worrying is paying interest on a debt you might not even owe.

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.