I find out what the world needs. Then I go ahead and try to invent it

Success is based on imagination plus ambition and the will to work.

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

The only thing I use my body for is to carry my brain around.

I am both pleased but astonished by the fact that mankind has not yet begun to use all the means and devices that are available for destruction. I hope that such weapons are never manufactured in quantity.

A reporter called on Edison to interview him about a substitute for lead in the manufacture of storage batteries that the scientist was seeking. Edison informed the man that he had made 20,000 experiments but none had worked. "Aren't you discouraged by all this waste of effort?" the reporter asked. Edison: "Waste! There's nothing wasted. I have discovered 20,000 things that won't work."

Every failure is a lesson learned about your strategy.