《汉书·传·赵充国辛庆忌传》
又乘机排挤羌敌使其受挫，叫他们不能回到肥饶的地方来，由于贫困使他们团结不到一起，逐渐形成羌敌自相叛离的局面，这是第二点。
又因排折羌虏，令不得归肥饶之地，贫破其众，以成羌虏相畔之渐，二也。
We will seize this opportunity to disperse the Qiang enemy in a fragmented fashion, denying them access to fertile lands. Poverty will prevent them from uniting, and gradually they will turn on one another and betray each other. This is the second advantage.