Dai Sheng in the Western Han Dynasty! ? The second gentleman, Dai Sheng, was born in the Western Han Dynasty and Liang Dynasty (the county is now Shangqiu, Henan Province). He used to be the satrap of Jiujiang and studied Confucian classics all his life, especially the study of the Book of Rites. With Dade Shu and Qingpu, he studied under Hou Cang, the master of Confucian classics, and devoted himself to studying. The study of etiquette. After painstaking study, the three men gained their own income, and gradually formed their own theoretical system and became a state of etiquette. Dade is called "Daidai" and Dai Sheng is called "Dai Xiao", both of whom are called "Daidai". "Therefore, the" ceremony "has the knowledge of the history of the Qing Dynasty (Hanshu Scholars). Dai Sheng became the pioneer of "Dai Xiaoxue" in etiquette; Later, the three schools of learning were mainly academic officials, and their academic prosperity was temporary. When Xuan Di proclaimed himself emperor, Dai Sheng was made a doctor, participated in the discussion of Shiqu Pavilion, and evaluated the similarities and differences of the Five Classics. He devoted his life to teaching and writing. He selected and recorded all kinds of etiquette works written by Confucius disciples from the Warring States to the early Han Dynasty, and compiled them into books. It is called Xiao Dai Ji or Xiao Dai. The book was originally a compilation of materials to explain the Book of Rites, and was later annotated by Zheng Xuan, which made it get rid of its subordinate position and become a book independently, and became today's Book of Rites. The whole book is divided into Quli, Tan Gong, Wang Zhi, Yue Ling, Liu Yun, Xue Ji, Yue Ji, Zhongyong, Da Shi, Neize, Ji Fang, Ruxing, Wang Zhi and Ruxing. Dai Sheng gave a detailed lecture on "Etiquette" and taught many disciples. He used to learn from Liang Renqiao and others. Therefore, today's "Xiao Dai Xue" has "Qiao Yang Zhi Xue" (Biography of Han Scholars). Dai Xiao contributed to the spread and development of etiquette. Dai Xiao's Book of Rites is listed as a Confucian classic and one of the "Three Rites". It was called "Dajing" in the Tang Dynasty, and it has replaced "Book of Rites" as "Li" in the Five Classics in the Ming Dynasty. This book occupies an important position in the history of Confucianism in China, and provides important materials for future generations to study and develop Confucian ideology and culture.