《资治通鉴·汉纪·汉纪五十》
许劭曾经担任过郡府中管理人事的功曹，府中官员听说了他的名望，无不改变、修饰自己的操行，以求得到一个较好的评语，曹操前去拜访许劭，询问他对自己的评价，说： 我是一个什么样的人呢？ 
尝为郡功曹，府中闻之，莫不改操饰行。曹操往造劭而问之曰： 我何如人？ 
Xu Shao had once served as the official in charge of staffing in the county government. The officials in the government heard of his reputation and changed and improved their conduct in order to get good comments. Cao Cao visited Xu Shao and asked him about his evaluation of himself, saying: "What kind of person am I?"