This article explores Mr. Mou's criticism on Ji Shan's inaccurate understanding on Chu Hsi theory. It studyies Mr. Mou' article and develops the second introduction, with main concern on whether the division of Li Chi binary of Chu His theory is inaccurate. Does Ji Shan's criticism on the transcendent division become declining study because of losing the idealism? We further elaborate the importance and priority of Li and Chi and discuss if Li is simply the predicate of Chi. With regard to Li and Chi, which is the reality and which is the name? Does Chu Hsi theory or Ji Shan Theory meet the original intention of the Confucianists of Chin Dynasty? Does Mr. Mou have the corresponding understanding on Ji Shan's thoughts?