Don't quit when the tide is lowest,
For it's just about to turn;
Don't quit over doubts and questions,
For there's something you may learn.
Don't quit when the night is darkest,
For it's just a while until dawn;
Don't quit when you've run the farthest,
For the race is almost won.
Don't quit when the hill is steepest,
For your goal is almost high;
Don't quit, for you're not a failure
Until you fail to try.
[read this somewhere long long time ago]