They who have conquered doubt and fear have conquered failure.

Failure is the condiment that gives success its flavor.

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

I think success has no rules, but you can learn a great deal from failure.

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

Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.

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.

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

Outward failure may be a manifested variant of inward success.