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

The perils of overwork are slight compared with the dangers of inactivity.

I have never seen the slightest scientific proof of the religious ideas of heaven and hell, of future life for individuals, or of a personal God.

My main purpose in life is to make money so I can afford to go on creating more inventions.

What a man's mind can create, man's character can control.

I never did anything worth doing by accident, nor did any of my inventions come indirectly through accident, except the phonograph. No, when I have, fully decided that a result is worth getting, I go about it, and make trial after trial, until it comes.