FAILURE, FAILURE IS INTRUCTIVE
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.
If you're not failing every now and again, it's a sign you're not doing anything very innovative.
Success is not final, failure is not fatal: it is the courage to continue that counts.
Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.
My great concern is not whether you have failed, but whether you are content with your failure.