One of the most difficult things to do in life is thinking; that's why so few people engage in it.

Merely gathering knowledge may become the most useless work a man can do. What can you do to help and heal the world? That is the educational test.

You can get it in any color, as long as it is black

Every depression is a challenge to every manufacturer to put more brains into his business.

Two classes of people lose money; those who are too weak to guard what they have; those who win money by trick. They both lose in the end.

The best way to make money in business is not to think too much about making it.

I see no advantage in these new clocks. They run no faster than the ones made 100 years ago.