《旧唐书·本纪·卷三》
君臣的良好关系，遭遇是这样难啊！以至于挖眼、剖心、抽筋、喂蛇，确实是由于遭遇的君王不同啊。
君臣之际，遭遇斯难，以至抉目剖心，虫流筋擢，良由遭值之异也。
It is so difficult for a good relationship between ruler and subject to be met with! To the extent of gouging out eyes, cutting out hearts, extracting tendons, and feeding to snakes, was really because of the different encounters with rulers..