I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that.

The trouble with most people is that they quit before they start.

I find my greatest pleasure, and so my reward, in the work that precedes what the world calls success.

The only time I really become discouraged is when I think of all the things I would like to do and the little time I have in which to do them.

The reason a lot of people do not recognize opportunity is because it usually goes around wearing overalls looking like hard work.

It is very different to make a practical system and to introduce it. A few experiments in the laboratory would prove the practicability of system long before it could be brought into general use. You can take a pipe and put a little coal in it, close it up, heat it and light the gas that comes out of the stem, but that is not introducing gas lighting. I'll bet that if it were discovered to-morrow in New York that gas could be made out of coal it would be at least five years before the system would be in general use.

The doctor of the future will no longer treat the human frame with drugs, but rather will cure and prevent disease with nutrition.