Zhai, Jincheng ç¿Y, The Study of the Theories of Ming (Name) in the Pre-Qin Period: Tianjin : Tianjin Guji Chubanshe, 2005, IV+228 pages

Mencius thinks that it is difficult to keep a person who holds the right or proper ming/name to a social position forever. [...]to protect the class system, it is possible to change the persons who are in certain social positions. [...]when Zhai discusses HUI Shi and GONGSUN Longzi, he also put these philosophers in the School of Names against the historical background. Because they hold a different approach from the West in recognizing the world, Chinese philosophers in School of Names and Later Moists spent their energy studying the Review of The Study of the Theories of Ming (Name) in the Pre-Qin Period 255 sameness and difference among things (tong yi ), instead of categorical orders among genus and species. [...]the famous arguments developed by GONGSUN Longzi became attractive and interested many scholars.