Abstract

"Cheng" is a key term in Chinese culture. At the same time, it has been widely viewed as an "elusive," even "the most unintelligible term" by both Chinese and Western scholars, because of its various, sometimes even contradictory usages and definitions. This dissertation points out that cheng possesses a core meaning--consistency. It is shared by all the usages and definitions, and legitimizes their validity as the members of the cheng family. ;The idea of cheng evolves mainly through two traditions, the traditions of influence and of reality. The first one emphasizes the impact of cheng on other people. It claims that cheng is the ultimate source from which comes a series of positive consequences. The second one treats cheng as essential attribute, or reality of a thing. It can explain why a thing exists as itself. Between the two traditions, cheng/influence is more prominent and complicated. ;The tradition of influence in turn divides into two sub-traditions, the sub-traditions of transformation and of change. One stresses that the sage with perfect cheng will effortlessly enlighten people, necessarily draw them to follow him. The goal of social transformation will be automatically realized in the above two-way process. The other emphasizes that cheng in a person's heart/mind can be made actively radiate out, impact on other people, and stimulate, inspire, and persuade them to do what the person treasures and wishes. The first one characterizes cheng in mainstream Confucianism, while the second is often found in various philosophers out of the mainstream. ;The work of Song Confucians signifies the summit of the evolution of the idea of cheng. They construct a system, with the notion of heaven, or the heavenly way as its foundation, and that of the transformation as its framework. In modern times, due to both theoretical rejections and practical challenges, the notion of heaven is decisively damaged. This results in the collapse of the system. The present task is not to rebuild the precious parts of the cheng tradition on the discredited heaven, but to rearrange them around the original core meaning