In ancient times, it refers to the ancient book "University". This was written by Ceng Zi, a student of Confucius. The book "University", with concise wording and profound connotation, mainly summarizes the pre-Qin Confucian moral cultivation theory, as well as the basic principles and methods of moral cultivation, and also systematically discusses the Confucian political philosophy, which is instructive for people to be human, do things and achieve their careers.

University was originally Article 42 of the Book of Rites. In the Song Dynasty, Cheng Hao and Cheng Yi brothers took them out of the Book of Rites and compiled chapters and sentences. Zhu named The Great Learning, The Doctrine of the Mean, The Analects of Confucius and Mencius as four books. Since then, The University has become a Confucian classic. As for the author of Da Xue, Cheng Hao and Cheng Yi thought it was "Kong's last words". Zhu rearranged The University, which was divided into one chapter of Jing and ten chapters of Biography. That "the words of Confucius, cover a chapter, Ceng Zi said; The tenth chapter is the meaning of Ceng Zi, and the master remembers it. " In other words, "Jing" is the words of Confucius and recorded by Ceng Zi; "Biography" is the interpretation of "Jing", which is recorded by students.