I really don't think life is about the I-could-have-beens. Life is only about the I-tried-to-do. I don't mind the failure but I can't imagine that I'd forgive myself if I didn't try.

Show me a thoroughly satisfied man and I will show you a failure.

One's only rival is one's own potentialities. One's only failure is failing to live up to one's own possibilities. In this sense every man can be a king and must therefore be treated like a king.

Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.

Success is often achieved by those who don't know that failure is inevitable.

There is no such thing as failure. There are only results.

I don't believe in failure. It is not failure if you enjoyed the process.

Failure should be our teacher not our undertaker. Failure is delay not defeat. It is a temporary detour not a dead end. Failure is something we can avoid only by saying nothing doing nothing and being nothing.

There is no failure except in no longer trying.

Failure is a detour not a dead-end street.