I came up with a famous book that year, so I wrote The History of Confucian Classics. But later, he felt that the book was slightly simplified, so he wrote the General Theory of Confucian Classics.

The history of Confucian classics mainly grasps the origin of Confucian classics in various dynasties, thus forming a line. The General Theory of Confucian Classics mainly focuses on the ways and methods of governing Confucian Classics.

Pixirui's original intention is to give priority to the history of Confucian classics, supplemented by the general theory of Confucian classics, and to give consideration to both, and not to neglect them.