I had read this piece some time ago.
A long time ago there was a great General who was faced with a situation which made it necessary for him to make a drastic decision to insure his success on the battlefield. He was about to send his army on shore to face a powerful enemy, whose men outnumbered his.
He loaded his soldiers into boats, and sailed to face the enemies on shore. When they reached the shore, he ordered them to unload the soldiers and cargoes. He then ordered for all the ships and boats to be burned.
Addressing his men before the battle, he said, "You see the ships and boats going up in smoke? That means that we cannot leave these shores alive unless we win! We now, have no choice - either we win, or we perish."