Even when you have doubts, take that step. Take chances. Mistakes are never a failure - they can be turned into wisdom.

Defeat is not the worst of failures. Not to have tried is the true failure.

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

It's not necessary to fear the prospect of failure but to be determined not to fail.

There's no such thing as failure - just waiting for success.

Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.

The most important of my discoveries have been suggested to me by my failures.

Failure is the condiment that gives success its flavor.

Enjoy failure and learn from it. You can never learn from success.

Failure is nature's plan to prepare you for great responsibilities.