Guided by 20^th century theories of language, Hansen's novel approach to interpretive theory launched the modern analytical study of Ancient Chinese philosophy. This 1983 publication challenged authority-based traditional "religious" accounts stemming from 18^th and 19^th century missionary dictionaries and reliance on interpretive authority.

"Hansen shows that one tiny grammatical question... has profound implications for the understanding of Chinese philosophy. ...This is surely a decisive breakthrough ... a great success. His observations about Chinese thought in general are always stimulating and illuminating. A book which excites one to rethink things from the foundations." A. C. Graham

"An ambitious and provocative book concerning the relationship between language and thought in ancient China. ... a novel and powerful theory about the nature of classical Chinese language ... a better understanding of many issues in classical Chinese philosophy." P. J. Ivanhoe

"[The] importance of this book lies ... in its engaging style, novel ideas, and rigorous argumentation, which can serve as a model for future work in Chinese philosophy. Hansen takes Chinese philosophy seriously as philosophy. For anyone tired of the superficial summaries or scholastic commentaries that so often characterize this field, Hansen's book will be a memorable and welcome change." Michael Martin