If this fail, The pillar'd firmament is rottenness, And earth's base built on stubble.

Failures are divided into two classes--those who thought and never did, and those who did and never thought.

I have no use for men who fail. The cause of their failure is no business of mine, but I want successful men as my associates.

I was never afraid of failure; for I would sooner fail than not be among the greatest.

You can fail many times, but you're not a failure until you begin to blame somebody else.

Failure is simply the definition of trying for the last time. Never quit, and you've never failed.