Take "public" as "Tao" and be impartial; Holding "righteousness" as "faction" and being neither crooked nor inclined can be called "fairness and decency". Fairness and decency are the basic moral standards and behavioral norms for dealing with people, and they are the attitudes and value orientations that people generally agree with. It has certain social historicity and class nature, and has different forms of expression and distinct characteristics of the times in different historical periods.