I HAVE left all upon the shameful field,
Honour and Hope, my God, and all but life;
Spurless, with sword reversed and dinted shield,
Degraded and disgraced, I leave the strife.
From him that hath not, shall there not be taken
E'en that he hath, when he deserts the strife?
Life left by all life's benefits forsaken,
O keep the promise, Lord, and take the life.
Robert Louis Stevenson
http://www.poemhunter.com/poem/the-vanquished-knight/