When you have exhausted all possibilities, remember this - you haven't.
Not only will atomic power be released, but someday we will harness the rise and fall of the tides and imprison the rays of the sun.
I try not to invent things that people don't need.
The radio craze will die out in time.
An idea is something that won't work unless you do.
I've never made a mistake. I've only learned from experience.