《新唐书·列传·卷二十三》
太宗认为王珪熟悉朝臣们的人品，又善于评价，所以对他说 ：你有透彻的鉴别能力，替我评品一下房玄龄等人的才干，并说说自己同他们比较谁更贤能？ 
帝以珪善人物，且知言，因谓曰： 卿标鉴通晤，为朕言玄龄等材，且自谓孰与诸子贤？ 
Taizong thought that Wang Gui was well acquainted with the virtue of the courtiers and also good at evaluation, so he said to him: You have a penetrating power of discrimination. Assess the talents of Fang Xuanling and others for me and tell me how virtuous you are compared to them.