a city of three miles, a country of seven miles, is invincible if it is encircled and attacked. If the husband attacks it, he will have the right time; However, if you don't win, it's better to be in the right place at the right time.

the city is not high, the pond is not deep, the army is not profitable, and the rice and millet are not abundant; It is not as good as human harmony to entrust it to others.

therefore, it is said that the people of the territory do not take the border of the frontier as a frontier, consolidate the country without taking the risk of a mountain stream, and conquer the world without taking advantage of the military revolution. Those who gain the Tao help more, but those who lose the Tao help less. If there is little help, relatives will help, and if there is more help, the world will be smooth. Take the world as it pleases and attack the side of relatives, so if a gentleman doesn't fight, he will win. "

—— "Mencius Volume IV Gongsun Ugly"