As a Confucianists' tradition of Dao, the standard was always the realization of Dao from Confucius to Mencius, the Confucius to Mencius, the Confucianists' tradition of Dao kept silent after Mencius and during the period of Dong Zhongshu, there just started to have a study of Confucianism, but the study of Confucianism was different from the Confucianists' tradition of Dao, the former belonged to the category of cultural phenomenology, but the latter was intended to prove the everybody naturally has the Dao. Despite there were many great achievers in the study of Confucianism from of dong Zhoungshu to the Dynasty, there hardly anybody made and though testimony of the doctrine of Confucius and Menicus. Along with the expanding of the Dama Chan, someone appeared to realize the Dao by the direct explanation of Dama Chan, the nature of Confucianists; Culture was nothing but a vivacious and unrestrained ultruism.