《战国策·赵四·秦攻魏取宁邑》
谅毅说： 赵豹、平原君，是我们君王的亲兄弟，就像大王有叶阳君、泾阳君两个弟弟一样。
谅毅曰： 赵豹、平原君，亲寡君之母弟也，犹大王之有叶阳、泾阳君也。
Liang Yi said: Zhao Bao and Pingyuan Jun are our king's siblings just as your majesty has two younger brothers: Yeyang Jun and Jingyang Jun.