BAN Gu's Criticism of Confucianism History and Culture under the Spirit of YI-Learning

The pith of change of Yin and Yangin the book of Yi Zhuan is Chinese traditional cultural criticism principle.BAN Gu(BC.32-92,A historian of Han dynasty) traced the original Confucianism and regarded learning spirit as the essence of Confucianism by the dialectical outlook of YI-Learning,while he criticized the political ideology of Han dynasty's Confucianism development.BAN Gu desired for both the academic truth of Confucianism and the goodness of its function in reality,while he considered the integration among the reality and ideal,academic study and political aids as the ideal of Confucianism and cultural criticism.The criticism thoughts of Confucianism and culture showed BAN Gu's open and independent cultural concept.