Even when you have doubts, take that step. Take chances. Mistakes are never a failure - they can be turned into wisdom.
FAILURE, MISTAKES ARE NEVER A FAILURE
It's not necessary to fear the prospect of failure but to be determined not to fail.
FAILURE, IT'S NOT NECESSARY TO FEAR THE PROSPECT OF FAILURE
We climb to heaven most often on the ruins of our cherished plans, finding our failures were successes.
Failure is the condiment that gives success its flavor.
FAILURE, FAILURE IS THE CONDIMENT
The great question is not whether you have failed, but whether you are content with failure.