You can't be afraid of failure and you can't be afraid of success, because either one gets in the way of your work.

Success is never final, failure is never fatal. It's courage that counts.

They who have conquered doubt and fear have conquered failure.

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

Do not let your ambitions become a sanctuary for your failures.

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

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

Failure is more frequently from want of energy than want of capital.

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

It's how you deal with failure that determines how you achieve success.