As famous Prime Ministers of Qi State during the Pre-Qin Period,both Guan Zhong and Yan Ying share one thing in common:they did not die for their former monarchs.This essay aims to explain that the changes of the times and folk have an influence upon evaluation of historical figures. Standards of Confucius' Ren and Dao are adopted to assess these two historical figures.The author also hopes that this study can provide the professionals some implications on how to deal with the relationship between superior ...