A person who doubts himself is like a man who would enlist in the ranks of his enemies and bear arms against himself. He makes his failure certain by himself being the first person to be convinced of it.

Do not blame anybody for your mistakes and failures.

If at first you don't succeed, failure may be your style.

Success and failure are equally disastrous.

Success isn't permanent and failure isn't fatal.

It is not a disgrace to fail. Failing is one of the greatest arts in the world.

Show me a good and gracious loser and I'll show you a failure.

The great question is not whether you have failed, but whether you are content with failure.

You gotta lose 'em some of the time. When you do, lose 'em right.

The only risk of failure is promotion.