What a man's mind can create, man's character can control.

I have not failed. I've just found 10,000 ways that won't work.

The chief function of the body is to carry the brain around.

I was always afraid of things that worked the first time. Long experience proved that there were great drawbacks found generally before they could be got commercial; but here was something there was no doubt of.

My main purpose in life is to make money so I can afford to go on creating more inventions.

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

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.