A teacher sent the following note home with a six-year-old boy 'He is too stupid to learn.' That boy was Thomas A. Edison.

Friendship is the heaven of life.

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.

Show me a completely contented person and I'll show you a failure.

Time is really the only capital that any human being has, and the only thing he can't afford to lose.

Genius is one percent inspiration and ninety-nine percent perspiration. As a result, a genius is often a talented person who has simply done all of his homework.

An idea is something that won't work unless you do.