My great concern is not whether you have failed, but whether you are content with your failure.

I think that failure by your own standards is certainly a form of success.

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

I can accept failure, everyone fails at something. But I can't accept not trying.

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

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

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

Success needs no explanation. Failure does not have one that matters.

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.