A failure teaches you that something can't be done-that way.

Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.

Many of life's failures are people who did not realize how close they were to success when they gave up.

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.

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

Absorb ideas from every source.

The trouble with most people is that they quit before they start.