"You can't do anything about the length of your life, but you can do something about its width and depth."
The theory of probabilities is at bottom nothing but common sense reduced to calculus.
释义:当与敌人作战时,如果敌方的将领愚钝,不懂得随机应变,就可以用利益来诱使他们做出错误的决定,从而达到战胜敌人的目的。