《论衡·卷二十七·定贤篇》
儒者传授学问，不随便改动一字，前代老师的古话，至今全部详尽地保存下来，即使带领门徒百人以上，在博士、文学之列，不过是邮人、门者这类人罢了。
者传学，不妄一言，先师古语，到今具存，虽带徒百人以上，位博士、文学，邮人、门者之类也。
Confucian scholars pass on knowledge and do not change a single word at will. The ancient words of previous teachers have been preserved in detail to this day. Even if they lead more than a hundred disciples, and are among the doctors and scholars, they are nothing more than people like postmen and doormen.