The political and social thought of Mou Zongsan (1909-95), one of the most important representatives of contemporary Chinese philosophy and Confucianism, was a lifelong endeavor for him and constitutes an indispensable part of his thought. It has been overlooked for much too long a time. This article aims to serve as an introduction to this dimension of his thought and so sketches out and discusses the core aspects of Mou’s political and social thought. Specifically, it focuses attention on the following six themes: (1) his critique of Marxism and, in particular, its materialistic dialectics and historical materialism dating from the early 1930s; (2) his response to various prevailing views that were informed and imbued with Marxism concerning Chinese history and society and the situation in rural China, along with his own understanding of Chinese history and society and his proposal for resolving the problems of rural China in the 1930s; (3) his comprehensive, systematic, and lifelong criticism of Communism in China; (4) his endorsement of freedom based on his contrasting analyses of the Western and Chinese liberal traditions; (5) his advocacy of a revised form of democracy in light of his penetrating observations on traditional Chinese politics combined with his reflections on Western democracy; and (6) his views on the relationship between mainland China and Taiwan and Taiwan’s identity. The presentation of these six themes not only embeds them in their historical context but also explores their contemporary significance.