They who have conquered doubt and fear have conquered failure.

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

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

Do not fear mistakes. You will know failure. Continue to reach out.

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.

Outward failure may be a manifested variant of inward success.

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.

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

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