They who have conquered doubt and fear have conquered failure.

It's fine to celebrate success but it is more important to heed the lessons of failure.

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

Once you start a working on something, don't be afraid of failure and don't abandon it. People who work sincerely are the happiest.

Once you can accept failure, you can have fun and success.

If you're not failing every now and again, it's a sign you're not doing anything very innovative.

Admitting failure is quite cleansing, but never - pleasurable.

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

Success and failure are both part of life. Both are not permanent.

The only real failure in life is not to be true to the best one knows.