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This book offers a comprehensive account of the great Neo-Confucian Master Cheng I (1033-1107), showing his philosophical ideas in a modern light. It systematically examines Cheng´s extensive literature and provides an ingenious interpretation of Cheng´s social and political views. The author, Yung-ch´un Ts´ai, was a respected scholar of sociology and theology in 20th century China.

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Preface.- Introduction.- Some Basic Categories of Ch´eng I´s Thought.- His Idea of Nature.- His Idea of History.- His Idea of Man.- Fundamentals of Ethical Teaching.- The Two-fold Way to Perfect Manhood.- Appendices.

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Yung-ch´un Ts´ai; PhD in Philosophy of Columbia University (1949), professor of religious institute of Yanching University (after 1950) and director of the reference room of the History Department at the Northeast University (now Jilin University). He has achieved an outstanding accomplishment in philosophical study as well as in sociology and religious studies; published a great many of dissertations both in Chinese and English languages; translated articles about ethnology problems, international problems and the relationship between China and Russia. Also a socialist, religionist, writer, translator.

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