《魏书·列传·卷五十九》
现在以我至强攻彼至弱，必有吞并之理；如以至弱御敌至强，哪有全济之术？
今以至强攻至弱，必见吞并之理；如以至弱御至强，焉有全济之术？
Now that I can use my strength to attack their weakness, it is certain that we will annex them; if we use our weakness to defend against their strength, how can we achieve victory?