He has been engaged in the study of Yi-ology for many years, especially the study of Yi-ology of images and numbers, and has put forward important opinions on many important and difficult problems in Yi-ology, forming a number of Yi-ology methods with both images, numbers and meanings. He has published Introduction to Zhouyi, Interpretation of Zhouyi Ancient Classics Vernacular, Interpretation of Zhouyi Biography in Vernacular, Lecture of Zhouyi, Zhao Fa of Najia, Modern Comprehensive Examination and Zhouyi on Silk.
Extended data:
1978 March 18, China science conference was held. Liu Dajun's first article, Reading History and Interpreting Yi, was published in China Philosophy. Hu Qiaomu, then president of China Academy of Social Sciences, read this article and wrote a letter of recommendation to Wu Fuheng, then president of Shandong University, asking him to use Liu Dajun, a sociologist without a college degree.
President Wu also thinks that Liu Dajun is a rare talent. After the defense and examination of several professors in philosophy department, Liu Dajun entered Shandong University. His job is to teach and study the history of China's philosophy in the Department of Philosophy, but he mainly studies Zhouyi. Prior to this, Liu Dajun was a storekeeper in Jinan Street Clothing Factory.
References:
Baidu Encyclopedia-Liu Dajun