461 Quotes by Thomas A. Edison

The doctor of the future will give no medicine but will instruct his patient in the care of the human frame, in diet, and the cause and prevention of disease.

Our greatest weakness lies in giving up.The most certain way to succeed is always to try just one more time.

There is no substitute for your impassioned prayers on behalf of your children

There is no substitute for hard work.

Until we stop harming all other living beings, we are still savages.

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'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.

There is no expedient to which a man will not go to avoid the labor of thinking.

The three great essentials to achieve anything worthwhile are, first, hard work second, stick-to-itiveness third common sense.