Liu Xizai (1813 ~1881) was born in Bo Jian, Rong Zhai and Xi Masako in Qing Dynasty. Xinghua, Jiangsu In the 19th year of Daoguang (1839), he was selected as a scholar in the 24th year of Daoguang (1844), visited Jishi Shu, imperial academy, and was awarded the post of editor. Tongzhi for three years (1864) was re-appointed as imperial academy Industry Department and Guangdong Promotion Ambassador, and soon took leave to go home and leave the officialdom. He lived in Shanghai in his later years and served as a lecturer at Longmen College 14 years. He has always maintained the true nature of a scholar, reading and writing behind closed doors. As Yu Yue said in the Tombstone of Zuo Chunfang and Zuo Liu Zhongyun Jun: "Except for the Six Classics, Confucianism and history, all astronomy, arithmetic, Chinese characters, rhymes and fairy tales are unfamiliar. Especially the behavior of squatting is heavy. " He has in-depth research on Confucian classics, phonology and arithmetic, and is called "Oriental Hegel". He is the author of Six Kinds of Gutong Bookstore and Three Kinds of Continuations of Gutong Bookstore.
Yilue was written in the 12th year of Tongzhi (1873), which is a centralized arrangement and revision of Liu Xizai's literary notes over the years. In the six-volume edition, Lun Shu and Lun Outline of Jing Yi respectively discuss the relationship between calligraphy art and poetry and painting, as well as the relationship between Jing Xue and eight-part essay writing, while other parts are devoted to literary creation. The purpose of his writing is also quite clear, that is, "draw inferences from others" to achieve the purpose of drawing inferences from others.