I am from a Chinese background and I remember a historical story that was told to me when I was a kid.
In the 3rd century B.C., there was great Chinese general named Xiang Yu. There was once when he and his troops were greatly outnumbered by enemy troops within enemy territory.
Behind Xiang Yu there was the Yangtze River, and he knew that if his troops were to retreat, the enemies would be right on their backs, and in that situation, only less than 1% of his soldiers would have had a chance of surviving.
So Xiang Yu made a very bold decision. He burnt all ships and destroyed all the cooking material they had. His troops were left with only 2 options: defeat the enemy OR get slaughtered by the enemy. Knowing their situation, Xiang Yu's soldiers were extraordinary courageous on the battlefield. At the end, they miraculously defeated an army which was 3 times their size.
The moral of the story? Well you can work it out.