Don't be afraid of missing opportunities. Behind every failure is an opportunity somebody wishes they had missed.

Failure is what we're all running from, we're always running toward success with failure at our back.

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

We may be personally defeated, but our principles never!

They who have conquered doubt and fear have conquered failure.

Success consists of going from failure to failure without loss of enthusiasm.

We climb to heaven most often on the ruins of our cherished plans, finding our failures were successes.

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

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

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.