The famous aphorisms about learning to have doubts when reading are:

1. There is no doubt in learning, but there is progress in doubt. ——Song Dynasty Lu Jiuyuan's "Quotations 2"

Translation: The most fearful thing about learning is that there are no doubts. If you have doubts, you can make progress by learning.

2. If you ask questions, you will be rich; if you use it yourself, you will have less. ——"Shang Shu·Zhong Hui's Edict"

Translation: If you study hard and ask questions, you will learn more. If you are arrogant, you will learn little.

3. Learn extensively, interrogate, think carefully, discern clearly, and practice diligently. ——The Book of Rites and Doctrine of the Mean by Dai Sheng of the Western Han Dynasty

Translation: To be erudite and talented, one must inquire about knowledge in detail, understand it thoroughly, think carefully, distinguish clearly, and practice it practically Practice.

4. People are not born with knowledge, how can they be free from confusion? ——Han Yu's "Teacher's Theory" in the Tang Dynasty

Translation: People are not born with knowledge and principles. Who can be without doubts?

5. A wise man cannot succeed without learning, and cannot know without asking. ——Wang Chong of the Han Dynasty, "Lunheng·Real Knowledge"

Translation: Even a smart and intelligent person will not understand if he does not study, and he will not understand if he does not ask for advice.