It is hard to fail, but it is worse never to have tried to succeed.
Who you are tomorrow begins with what you do today.
Failure is the condiment that gives success its flavor.
The difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack in will.
Vince Lombardi Jr.
To succeed in the world it is not enough to be stupid - one must also be polite.
If at first you don't succeed, try, try again. Then quit. No use being a damn fool about it.