Mou Zongsan

Early Life and Education

Mou Zongsan was born on June 12, 1909, in Qixia, Shandong Province, China. He studied at Peking University, where he encountered both the Western philosophical tradition and the New Culture Movement's complex engagement with Chinese cultural heritage. He studied under Xiong Shili, the Neo-Confucian philosopher who would become the dominant influence on his philosophical development, and became one of Xiong's most philosophically gifted students.

Mou studied Kant, Hegel, and Western logic with great intensity — developing an unusual mastery of Western philosophical methodology alongside deep knowledge of the Confucian and Buddhist textual traditions. This combination of genuine philosophical bilingualism would distinguish him from most of his contemporaries and successors.

From Mainland China to Taiwan and Hong Kong

Following the Communist victory in 1949, Mou — like many New Confucians — left mainland China. He taught at Donghai University in Taiwan and later at the New Asia College and the Chinese University of Hong Kong, where he remained for most of his productive career. He was one of the signatories of the landmark 1958 'Manifesto for Chinese Culture to the World' (Zhongguo wenhua yu shijie), co-authored with Tang Junyi, Xu Fuguan, and Zhang Junmai, which articulated the New Confucian program of recovering and adapting the Confucian tradition for modern conditions while resisting both Western cultural imperialism and Communist repudiation of the tradition.

Philosophical Development: From Logic to Moral Metaphysics

Mou's early work was in logic and philosophy of mathematics, including a study of Russell and Whitehead's Principia Mathematica and an early book on logic and reality. His engagement with Kantian philosophy deepened through the 1950s and 1960s, resulting in his major three-volume work Mind and Human Nature (Xin ti yu xing ti, 1968–1969) — a systematic philosophical reconstruction of the Song-Ming Neo-Confucian tradition in terms of the theory of liang-zhi (innate moral knowledge, originally a concept from Wang Yangming).

The Kant Critique: Intellectual Intuition and Liang-zhi

The philosophical core of Mou's system is a sustained engagement with and critique of Kant. Kant argued, in the Critique of Pure Knowledge and related works, that human beings are discursive (not intuitive) knowers: our intellect can only know what is given through sensory intuition, schematized by the categories of the understanding. 'Intellectual intuition' — the direct, non-sensory, creative knowing of things as they are in themselves — is available only to God (or a being with divine cognitive capacities). For Kant, the 'thing-in-itself' (Ding an sich) is therefore permanently inaccessible to human cognition.

Mou accepted Kant's analysis as correct for theoretical (cognitive-scientific) knowledge but argued that it was incomplete: it failed to account for moral knowledge as it appears in the Confucian and Buddhist traditions. The liang-zhi (conscience, innate moral knowledge) of Wang Yangming's philosophy is, Mou argues, precisely an intellectual intuition in the Kantian sense: it is a direct, non-discursive, creative knowing of moral truth that constitutes its object (the moral situation) rather than merely representing it.

This claim has radical implications: if liang-zhi is genuine intellectual intuition, then the Kantian thing-in-itself is not permanently inaccessible — it is accessible through moral knowledge. The moral realm is the realm in which the human mind touches reality directly, in its own nature, rather than through the mediating filters of sensory intuition and discursive understanding.

The Self-Negation of Conscience: Mou's Most Original Move

Mou's most philosophically original contribution is the doctrine of the 'self-negation of liang-zhi' (liang-zhi de zi wo kan xian). The argument is subtle: liang-zhi, as intellectual intuition, knows things in themselves — it is a form of infinite, creative knowing. But for the finite conditions of human life, liang-zhi voluntarily 'closes itself off,' 'darkens itself,' or 'limits itself' — it performs a self-negation — to allow a discursive, objective, scientific understanding of nature to emerge.

This move performs several philosophical tasks simultaneously:
1. It accounts for the possibility of natural science and objective knowledge on Confucian grounds (as the result of the self-limitation of moral knowing)
2. It reverses the Kantian asymmetry: for Kant, moral knowledge is a special case within the larger framework of theoretical knowledge; for Mou, theoretical-scientific knowledge is a derivative case within the larger framework of moral-intuitive knowing
3. It articulates the relationship between the moral and the scientific as complementary rather than competing — science is a genuine form of knowing precisely because it arises from conscience's self-negation, and it should be reintegrated into the larger moral framework

Two Levels of Truth: Phenomenal and Noumenal Knowing

Mou distinguishes two fundamental levels of knowing: zhi de zhi ti (the knowing of the knowing subject / intellectual intuition) and zhi de zhi yong (the knowing as function / discursive knowledge). The first is the original ground; the second is its functional expression in finite cognition. This two-level structure allows Mou to affirm both the full validity of scientific knowledge and the superior completeness of moral-intuitive knowledge without reducing one to the other.

He also developed a comprehensive typology of the different systems of Chinese philosophy — Song-Ming Neo-Confucianism, Taoism, Hua-yen Buddhism, Tiantai Buddhism — showing that each embodies a distinctive way of working out the relationship between the one (the infinite, creative moral mind) and the many (the finite world of nature and history).

New Confucianism and Cultural Politics

Mou was one of the central figures of 'New Confucianism' (xin rujia) — the intellectual movement, primarily among Chinese philosophers in Taiwan and Hong Kong (and later globally), that sought to recover the Confucian tradition as a living philosophical resource while engaging it critically with Western modernity. He argued that Confucianism, properly understood and reconstructed, could provide the cultural and moral foundation for Chinese modernity — including science, democracy, and human rights — without simply importing Western categories.

His analysis of why China failed to develop modern science and democracy on its own (a much-debated topic in Chinese intellectual history) was that the Confucian tradition's highest development occurred in the moral-intuitive mode, which, while philosophically superior in its own domain, did not generate the self-limitation of conscience necessary to produce the detached, objectifying stance required by natural science. This self-limitation is what he argued modern Chinese culture needed to develop consciously.

Major Works and Their Scope

Mou's output was prodigious and philosophically dense. His complete works run to thirty-three volumes. The major philosophical works include: Treatise on the Moral Mind (Dao de de li xiang zhu yi, 1959), Mind and Human Nature (Xin ti yu xing ti, 3 vols., 1968–1969), Intellectual Intuition and Chinese Philosophy (Zhi de zhi ti yu Zhongguo zhexue, 1971), Phenomenon and the Thing-in-Itself (Xianxiang yu wu zi shen, 1975), and On the Summum Bonum (Yuan shan lun, 1985).

Legacy

Mou Zongsan died on April 12, 1995, in Taipei. He is widely regarded as the most philosophically rigorous thinker of modern Chinese philosophy and the philosopher who most successfully engaged Chinese thought with Western philosophy on equal terms. His influence extends to contemporary New Confucian scholars worldwide, to the philosophy of mind and moral philosophy, and to ongoing debates about the relationship between Eastern and Western philosophical traditions.