The original sentence is from Liu Xiang's Shuo Yuan.
Shuoyuan, also known as Xinyuan, is a collection of novels compiled by Liu Xiang in Han Dynasty. There are 20 original volumes, only 5 volumes left, and most of them are lost. After searching by Ceng Gong in Song Dynasty, they were re-edited into 20 volumes, each with its own title.
Information Introduction of Shuo Yuan
Because of the extensive use of works and the collection of a large number of historical materials, it provides many conveniences for people to explore history. Some historical events recorded in the book can be mutually confirmed with the existing classics; Some of the notes are different from Historical Records, Zuo Zhuan, Mandarin, Warring States Policy, Xunzi, Hanfeizi, Guanzi, Yanzi Chunqiu, Lvshi Chunqiu, Huainanzi, etc., which are sufficient references for people who search for history.
Some ancient books have been lost, but one or two are preserved in Shuo Yuan, which is especially precious. For example, Shi Kuang said in "A Gentleman's Way": "A gentleman's way is pure and inaction, and its service lies in fraternity, tending to benevolence, broadening eyes and ears, observing all parties, not indulging in selfish desires, not being tied to the left and right, being far-sighted, being independent, saving performance appraisal repeatedly, and being a courtier. This person is also a gentleman. "
There are six novelists in Shi Kuang's Han Shu Yi Wen Zhi, which has long been lost. Shi Kuang's argument is suspected to come from six Shi Kuang. You can find many such examples.