Persistence is to carry on what you have learned, and only the knowledge that is carried on in a down-to-earth manner is the real learning. ? Being pragmatic means paying attention to seeking truth from facts and proceeding from reality. From The Doctrine of the Mean, "Be knowledgeable, interrogate, think carefully, distinguish clearly and stick to it".

It means that if you want to be knowledgeable, you must ask for knowledge in detail, understand it thoroughly, think carefully, distinguish it clearly and practice it seriously. From The Book of Rites of Dai Xiao and The Book of Rites of Komatsu.

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Introduction to the golden mean

The Doctrine of the Mean is a monograph on moral philosophy in the field of life cultivation in ancient China. It originally belonged to Chapter 31 of the Book of Rites and is one of the Confucian classics. It is said that it was written by Zisi during the Warring States Period.

Its content affirms that "the golden mean" is the highest standard of moral behavior, regards "sincerity" as the noumenon of the world, thinks that "sincerity" reaches the highest realm of life, and puts forward the learning process and cognitive methods of "erudition, questioning, deliberation, discernment and perseverance".

Scholars in the Song Dynasty extracted the golden mean from The Book of Rites and merged it with The University, The Analects of Confucius and Mencius into four books. After the Song and Yuan Dynasties, it became an official textbook, and the imperial examination was compulsory, which had a great influence on the ancient education and society in China.

Its main annotations include Cheng Hao's The Doctrine of the Mean, Cheng Yi's Interpretation of the Doctrine of the Mean, Zhu's Chapters of the Doctrine of the Mean, Li Yong's Biography of the Doctrine of the Mean, Dai Zhen's Supplementary Notes on the Doctrine of the Mean, Kang Youwei's Notes on the Doctrine of the Mean, Ma Qichang's Friends of the Doctrine of the Mean and Hu's Brief Comments on the Doctrine of the Mean.