《汉书·传·窦田灌韩传》
这样两兵相接，打败敌人，征伐敌国，摧毁他们的城池，经常轻而易举地就可以奴役敌国，这是圣人用兵之法。
故接兵覆众，伐国堕城，常坐而役敌国，此圣人之兵也。
In this way, when the two armies meet, they will defeat the enemy, conquer the enemy's country, and destroy their cities. It is often easy to enslave the enemy, and this is the way of the wise man.