I've never made a mistake. I've only learned from experience.

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

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

I never once failed at making a light bulb. I just found out 99 ways not to make one.

There will one day spring from the brain of science a machine or force so fearful in its potentialities, so absolutely terrifying, that even man, the fighter, who will dare torture and death in order to inflict torture and death, will be appalled, and so abandon war forever.

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.

I am a vegetarian as well as a passionate anti-alcoholic, because I can thus make better use of my brain.