《魏书·列传·卷七》
如果选拔精锐的兵士，合力攻打一处营寨，他们不相互救助，我们攻克是必然的。
若选精卒，并攻一营，彼不相救，我克必矣。
If we choose our elite soldiers, and attack one of their camps with all our strength, they will not come to each other's aid, and we will inevitably conquer them.