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

Do not allow yourselves to be disheartened by any failure as long as you have done your best.

Success is my only option, failure's not.

My great concern is not whether you have failed, but whether you are content with your failure.

You build on failure. You use it as a stepping stone. Close the door on the past. You don't try to forget the mistakes, but you don't dwell on it. You don't let it have any of your energy, or any of your time, or any of your space.

Show me a thoroughly satisfied man and I will show you a failure.