As fromer student of the late professor Ch'en Mu, I will present in this paper how I understand his ideas concerning the following problems: (1) traditional Chinese politics; (2) traditional Chinese society; (3) traditional Chinese classical learnings; (4) the ideas of naturalism and human nature and the mind. The first three mainly indicate how professor Ch'en as a famous contemporary Chinese traditional scholar looked at the problems mentioned and his opposition to the condemnation of the problems by the so-called contemporary Chinese new intelligentsia. The last point mainly indicates how professor Ch'en used this to introduce his own thought as regards the traditional view of the world and human life.