汉易卦气学论要

卦气学是西汉人将易卦与二十四气结合建构的占筮学体系，《周易》本经中本无卦气观念，故后世用卦 气学解经的种种说法皆为于经无据之妄说。卦气说的理论支撑为阴阳二气运行的原理、天人感应、五行生克及其派生的 五行运数原理。在两汉社会政治生活中卦气学实际是一些知识分子发表政见，参与政治斗争的工具。其理论形式虽存 在严重问题，但对中国古代气论哲学的发展有启示作用，并存续了先秦儒家的德治和仁政思想。卦气学与洪范庶征学有 密切关系。这种学问虽借用了历法知识，但对历法并没有什么积极意义。

Summary of the Eight Digrams in Han Changes

Divination science is a system consturcted with Changes and Tuenty-four Solar Terms by the persons in the Western Han Dynasty.Originally there is no divination in Changes of Zhou Dynastythus the following illustration of divination science was falsewhich is based on the principles o Yin and Yangharmony between mankind and naturerestriction in five elementsetc.During the Western and Eastern han Dynastiesthe divination science had be to tool for the intellectuals to express thien opinions about politicswhose theory forms had enlightened the ancient divination philosophy and inherted Confucionism.It is not positive to the lunar system although it had used the latter.