沈约《宋书·恩幸传序》有如下一段话：“夫君子小人，类物之通称。蹈道则为君子，违之则为小人。屠钓，卑事也，版筑，贱役也，太公起为周师，傅说去为殷相。非论公侯之世，鼎食之资，明扬幽仄，唯才是与。逮于二汉，兹道未革。胡广累世农夫，伯始致位公相；黄宪牛医之子，叔度名重京师。……侍中身奉奏事，又分掌御服。东方朔为黄门侍郎，执戟殿下。郡县掾史，并出 Shen about “Book of Songs Fortunate Preface” has the following passage: "gentleman villain, known as the class. Dance Road is a gentleman, contrary to the villain. Slaughter, humble, version build, Aristocratic service also, too public for the Zhou division, Fu said to Yin phase .On the occasion of the public Hou, Ding food capital, Ming Yang contracted, only is .In the second Han Dynasty, it is not leather. Guangyong farmer, the beginning of the prime minister public; Huang Xian cattle doctor’s son, uncle degree name of the capital division ... ... paternity in the body to play things, and sub-patriarch. Oriental Shuo Huang door assistant minister, Out