《北史·列传·卷四十》
从此，太后将高俨保护在宫内，吃饭一定先自己尝一尝，陆令萱劝后主说： 人们都称赞琅邪王聪明英勇，举世无双。看他的外表，不像是做人臣的样子。
自是，太后处俨于宫内，食必自尝之。陆令萱说帝曰： 人称琅邪王聪明雄勇，当今无敌，观其根表，殆非人臣。
Thus, the Empress Dowager protected Gao Yan in the palace, and before she ate, she would definitely taste it first. Lu Lingxuan advised the empress: “People all say that the Langye King is clever, brave, and without peer in the world. Based on his outer appearance, he does not seem cut out to be a subject.