《司马法·天子之义》
古代教育民众，必须制定上、下、尊、卑的人伦道德规范，使上下尊卑之间彼此不相欺凌，德和义不互相踰越，有才技的人不被埋没，有勇力的人不敢违抗命令，这样，大家就会同心协力了。
古之教民，必立贵贱之伦经，使不相陵。德义不相逾，材技不相掩，勇力不相犯，故力同而意和也。
In ancient times, the education of the people required the establishment of moral standards for superiors and inferiors, so that superiors and inferiors would not deceive each other, that virtue and righteousness would not be transgressed, that talented people would not be buried, and that the brave would not dare to disobey orders. In this way, everyone would work together.