The great question is not whether you have failed, but whether you are content with failure.
There is no loneliness greater than the loneliness of a failure. The failure is a stranger in his own house.
FAILURE, LONELINESS OF A FAILURE
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
FAILURE, FAILURE IS INTRUCTIVE
There's no such thing as failure - just waiting for success.
FAILURE, JUST WAITING FOR SUCCESS
Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.