All bibles are man-made.

I have not failed. I have successfully discovered 1200 ideas that don't work.

Negative results are just what I want. They’re just as valuable to me as positive results. I can never find the thing that does the job best until I find the ones that don’t.

The strength of the Constitution, lies in the will of the people to defend it.

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.

Sleep is like a drug. Take too much at a time and it makes you dopey. You lose time and opportunities.

Absorb ideas from every source.