If I could solve all the problems myself, I would.

I owe my success to the fact that I never had a clock in my workroom.

I make more mistakes than anyone else I know, and sooner or later, I patent most of them.

I have not failed. I've just found 10,000 foundations and individual donors whose priorities don't align with my organization's.

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."

Good fortune is what happens when opportunity meets with planning.

Vision without execution is delusion.