To have a great idea, have a lot of them.

I have friends in overalls whose friendship I would not swap for the favor of the kings of the world.

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

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.

Barring serious accidents, if you are not preoccupied with worry and you work hard, you can look forward to a reasonably lengthy existence.... Its not the hard work that kills, its the worrying that kills.

Invention is 10% inspiration and 90% perspiration.

We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy - sun, wind and tide. ... 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.