To be the famous scholar and philosopher in Middle Qing Dynasty, Dai Zhen enjoyed a distinguished position in history. His masterpiece, Mencius Hermeneutics, built on the basis of the firm ancient literature and came into being huge influence as well as great controversy.My goal in this paper is to study the relationship and influence between the textual method and moral principles in it. At last, I hope the study of relevant issues can make some contributions to the study of Dai Zhen. |