According to legend, it was written by Ceng Zi, and The Classic was written by Confucius and recorded by Ceng Zi. "Biography" is the interpretation of "Jing", which is recorded by students.

Three schemes: clear morality, be close to the people and stop at perfection.

Eight items: discipline, knowledge, honesty, honesty, self-cultivation, keeping the family in order, governing the country and leveling the world.

The most important items are things and knowledge.

The premise of self-cultivation is self-respect, erudition, sincerity and integrity. It is subdivided into: understanding things as "poor reason", sincerity as "right", and poor reason as the basis of right.