As a student, there is no doubt that doubt makes progress, small doubt makes small progress, and big doubt makes great progress.
It was said by Mr. Lu Jiuyuan, a famous philosopher in the Southern Song Dynasty, in his book Lu Jiuyuan's Quotations.
The biggest fear in learning is that there is no doubt, and there is room for progress when there is doubt. There will be small progress if there is a small problem, and there will be great progress if there is a big problem.
Understanding: Asking questions must be based on thinking. You should read books, think about problems and study subjects by yourself. If you really don't understand, ask someone else. Only in this way can you be impressed and master the knowledge thoroughly.
Learning needs to be calm. If you are impetuous and feel a little sleepy, you will ask questions. Over time, you will become superficial.
Extended data:
Lu Jiuyuan put forward the famous theory that "mind is reason" in his "Fragrant Hills Collection" volume 34 "Quotations".
Trying to prove that all feudal moral dogmas are inherent in the human heart and the water balance remains unchanged, which vividly reflects his subjective idealistic world outlook.
Asserting the principle of nature, the principle of man and physics is only in my heart, and my heart is the only reality. It is emphasized that "the universe is my heart, and my heart is the universe, which is the same from generation to generation". It is pointed out that "mind" and "reason" are eternal things.
Lu Jiuyuan paid no attention to writing books all his life. His quotations and several poems were compiled by his son Lu Yu in the first year (1205) into the Collected Works of Mr. Xiangshan, with a total of 36 volumes, which were published by his students in Jiading five years (12 12).
Baidu Encyclopedia-Lu Jiuyuan
Baidu Encyclopedia-Xiangshan Collection