《吕氏春秋·纪·仲秋纪》
凡敌人来犯，都是为了追求利益，假如来犯而遭到覆灭，那将把退却看作是有利了。
凡敌人之来也，以求利也。今来而得死，且以走为利。
Whenever the enemy invades, it is to seek advantage. If they invade and are destroyed, then they will regard retreat as advantageous.