For the which cause I also suffer these things: nevertheless I am not ashamed: for I know whom I have believed, and am persuaded that he is able to keep that which I have committed unto him against that day.
(2 Tim. 1:12 KJV)
Winston Churchill, one of the greatest leaders in history, had a reputation for never quitting. He knew well that losing follows quitting.

Those who give up never reach their full potential, and perhaps not even their next goal. One of Churchill's most inspiring statements on the subject was this:
We shall go to the end, we shall fight in France, we shall fight on the seas and oceans, we shall fight with growing confidence and growing strength in the air, we shall defend our Island whatever the cost may be, we shall fight on the landing grounds, we shall fight in the fields and in the streets, we shall fight in the hills; we shall never surrender, and even if, which I do not for a moment believe, this Island or a large part of it were subjugated and starving, then our Empire beyond the seas, armed and guarded by the British fleet, would carry on the struggle, until, in God's good time, the New World, with all its power and might steps forth to the rescue and the liberation of the old.
Whether it's a war, a game, a business deal, or a fight for one's life, labor to win until the final bell sounds.

And after you have done all you can do, pray that others will pick up your effort and press on to even greater heights.

Source: Winning 101 by Van Crouch
Excerpt permission granted by Van Crouch Communications