The purpose of reading is to dispel your doubts. Know what you don't have. If you keep learning and gain new gains, your knowledge will be improved. By learning where there seems to be no doubt and discovering new doubts, this is progress.

Original: So readers. Release your doubts and know that you have not achieved anything. Every time you see new benefits, you learn them. Where there is no doubt, there is doubt, and the party is moving forward.

It is a famous sentence about learning and teaching in the fourth volume of Zhang Qing's Collection of Boxing Studies.

Zhang Zai, a philosopher in the Northern Song Dynasty, was born in Daliang (now Kaifeng, Henan) and Chang 'an (now Xi, Shaanxi). He gave lectures in Hengqu Town, Shaanxi Province for a long time and was called Mr. Hengqu by people at that time. Most of his disciples are from Guanzhong, and the school is called "Guan Xue". There are Zhengmeng, Theory of Hengqu Art, Selected Works and Zhang Zi's Quotations that have been handed down. He put forward many original ideas on how to read.

Zhang Zai advocated reading and seeking doubt, and advocated that "there is no doubt about doubt". Zhang Zai said in the article "The Cave of Confucian Classics and Doctrine": "Therefore, people who study should dispel their doubts and know that they have not reached it. Every time you see what you know, you learn; Where there is no doubt, if there is doubt, just enter. " It is very meaningful for Zhang Zai to ask questions while reading.

Questions in reading have two meanings:

First, in the process of reading, "dispel doubts" and solve problems that you don't understand. If you don't understand once, you will be suspicious. Read it a few more times, and you may understand it and let it go.

Second, in the process of reading, I put forward my own doubts and doubts. About opinions, arguments, historical facts, etc. For the articles and books read, "where there is no doubt, there is doubt", or find mistakes in the book, or put forward their own questions, or produce their own new insights. If you are so skeptical, you will remember reading more firmly, gain more from reading and make progress in reading. Isn't it wonderful to read and ask questions?