The three things that are most essential to achievement are common sense, hard work and stick-to-it-iv-ness... Unfortunately, many of life's failures are experienced by people who did not realize how close they were to success when they gave up. I have far more respect for the person with a single idea who gets there than for the person with a thousand ideas who does nothing.

Youth doesn't take advice.

The dove is my emblem.

There is great value in disaster. All our mistakes are burned up. Thank God we can start a new.

Vision without execution is delusion.

The inventor tries to meet the demand of a crazy civilization.

I have not failed 700 times. I have not failed once. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work.