? "University" is an essay on the Confucian thought of self-cultivation and governing the country. Originally the 42nd article of The Book of Rites of Little Dai, it is said that it was written by. In fact, it is a Confucian work in the Qin and Han Dynasties, and it is an important work for China to discuss educational theory in ancient times. After being highly praised by Cheng Hao and Cheng Yi in the Northern Song Dynasty, Zhu in the Southern Song Dynasty wrote "University Chapters and Sentences", which was finally called "Four Books" together with The Doctrine of the Mean, The Analects of Confucius and Mencius. After the Song and Yuan Dynasties, "Da Xue" became the official textbook of the school and the required reading of the imperial examination, which had a great influence on the ancient education in China.

The "Three Outlines" and "Eight Items" put forward by "University" emphasize that self-cultivation is the premise of governing people, and the purpose of self-cultivation is to govern the country and level the world, which shows the consistency between governing the country and level the world and personal moral cultivation [65438].

? The Doctrine of the Mean, originally the thirty-first article in The Book of Rites, is an article on Confucian human nature cultivation. It is said that it was written by Zisi, which is an important monograph on educational theory in ancient China. Respected by Cheng Hao and Cheng Yi in the Northern Song Dynasty, Zhu in the Southern Song Dynasty wrote Notes on the Doctrine of the Mean, which was finally called "Four Books" together with Daxue, Analects of Confucius and Mencius. After the Song and Yuan Dynasties, The Doctrine of the Mean became an official textbook and a must-read in the imperial examination, which had a great influence on ancient education. ?

? See the meanings of "university" and "golden mean" in Baidu Encyclopedia for details.