On Dec. 3 ， 2006, four famous scholars: Prof. Zheng Ji-xiong, Prof. Xu Sheng-xin, Prof. Liu Wen-qing and Prof. Zhang Li-li, who are all from Taiwan University, visited the Center and participated in the Academic Seminar on Zhouyi Text and Commentaries hosted by the Center. During the visit Prof. Zheng Ji-xiong gave two lectures to the graduate Students of the Center and philosophy department on the subjects of “ On Yi Zhuan's Hermeneutics on Zhouyi from the Semantic Deduction of the Text ” and “ Hardness is Put in the First Place in Zhouyi ” . The two subjects arouse strong reactions among the listeners.
In the first lecture, Prof. Zheng made twenty two illustrations to explain that the authors of Zhouyi made different dimensional deductions by concentrating on one word when they wrote the Text, based on which new meanings were brought forth. Contrasting the Text with the Commentaries ( Yi Zhuan ), we can find that the authors of Yi Zhuan actually followed the creative pattern contained in Zhouyi , and expanded the meanings of the Text. If we believe that the authors of Yi Zhuan developed new philosophical interpretations out of Zhouyi , we should also admit that the philosophical method had already existed in Zhouyi . So Prof. Zheng pointed out that, during the past century, the research method of separating Yi Zhuan from Zhouyi does not tally with the intrinsic character showed by Zhouyi and Yi Zhuan . We should clarify the similarities and differences between Zhouyi and Yi Zhuan . This is an indispensable condition for us to study Yi Jing .
In the second lecture, Prof. Zheng expounded that hardness in the Tao of Yi is prior, which does not mean that there is no softness in the Tao of Yi , but means Qian , hardness, strength, change are prior to Kun , softness, obeisance and static. The ancient Chinese people have already realized that Qian and Yang are the principal power in the natural motion. The later interpreters ensure the idea that Yang is strong and fortune, and Yin is weak and misfortune in the remarks affiliated to the hexagrams and lines. Many Yi -ologists, such as the authors of Yi Zhuan , Dong Zhong-shu (179B.C.—104B.C.), Xun Shuang(128--190), Wang Bi(226--249), Zhang Zai(1020--1077) and Zhu Xi(1130--1200), respectively analyzed and interpreted the concept that hardness in the Tao of Yi is prior.