《史记·七十列传·鲁仲连邹阳列传》
新垣衍说： 我看留在这座围城中的，都是有求于平原君的人；而今，我看先生的玉貌，不像是有求于平原君的人，为什么还长久地留在这围城之中而不离去呢？ 
新垣衍曰： 吾视居此围城之中者，皆有求於平原君者也；今吾观先生之玉貌，非有求於平原君者也，曷为久居此围城之中而不去？ 
Xin Yuanyi said: It seems to me that those who stay in this besieged city are those who have favors to ask of the Lord of Pingyuan. Today, I look at your gentle appearance, and it doesn't seem like you have any favors to ask of the Lord of Pingyuan. Why then do you stay in this besieged city for so long and not leave?