The doctor of the future will give no medicine, but will involve the patient in the proper use of food, fresh air and exercise

I owe my success to the fact that I never had a clock in my workroom. Seventy-five of us worked twenty hours every day and slept only four hours - and thrived on it.

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.

I am much less interested in what is called God's word than in God's deeds. All bibles are man-made.

The body is a community made up of its innumerable cells or inhabitants.

Mr. Edison worked endlessly on a problem, using the method of elimination. If a person asked him if he were discouraged because so many attempts proved unavailing, he would say, "No, I am not discouraged, because every wrong attempt discarded is another step forward.".

Maturity is often more absurd than youth and very frequently is most unjust to youth.