《新唐书·列传·卷二十二》
高兴时该用刑而不忍心使用，发怒时丢开法律去寻找罪过；对自己喜欢的人极力赞美，对自己厌恶的人百般挑剔。
喜则矜刑于法中，怒则求罪于律外；好则钻皮出羽，恶则洗垢索瘢。
The emperor may be reluctant to punish someone he favors when he is happy, and may abandon the law and seek out crimes when he is angry; he may lavish praise on those he likes, and pick on every fault of those he dislikes.