It is better to believe all the books than not to have any books-Mencius

A gentleman has Jiu Si: He thinks clearly, listens attentively, looks gentle, looks respectful, speaks faithfully, respects the temple, doubts and asks questions, resents and thinks difficultly, and sees what he thinks-Confucius

Asking a question is often more important than solving a problem. Always doubting, not judging, that's the shortcoming-Lu Xun

Example: Zu Chongzhi showed a keen interest in mathematics and astronomy since he was a child. He "specialized in mathematics and refined ancient and modern times", but he never "falsely extrapolated the ancients" and never bound himself to ancient books and predecessors' theories. He dared to doubt the stale theories of his predecessors, to overthrow their erroneous theories, and to critically accept their scientific heritage. In his youth, he made a careful study of the academic achievements of Zhang Heng, Zheng Xuan and others, corrected some mistakes and made many valuable research achievements. Later, he found that there were many mistakes in the "calendar" compiled by the famous astronomer He Chengtian for the Song Dynasty at that time, so he started to rewrite a new calendar-Daming Calendar

I hope my answer can help you solve the problem! ! ! 2. famous sayings and aphorisms about knowing how to question

Learning is expensive to question. We say that successful people have "learning". Since they are "learning", they should both "learn" and "ask".

where did the question come from? From doubt. Only by being suspicious, good at doubting, questioning and probing into doubts can we gain profound knowledge and apply it to the people's cause.

so we say: learning is expensive. People often compare knowledge to the ocean. The ocean is boundless, and so is knowledge.

No matter how learned a person is, there is always ignorance, and being suspicious, suspicious, questioning and probing into doubts is the way to acquire new knowledge. It is based on this that Balzac, a great French writer, said: "Opening all the keys to science is undoubtedly a full stop, and the wisdom of life probably lies in asking why everything happens."

indeed, if Darwin had no doubt about the "creationism", there would be no establishment of the "natural selection theory"; If Copernicus did not doubt the geocentric theory, there would be no Heliocentrism. Therefore, only doubt can make our tree of wisdom bloom brightly and bear rich fruits.

However, we must understand that doubt is based on rich knowledge and careful thinking, and it is by no means unwarranted suspicion or casual suspicion. Darwin's suspicion of "creationism" is not a whim, but that he traveled around the world with the sailboat "Beagle" for five years, observed and collected a large number of animal and plant specimens, and investigated and studied countless geological data. After comprehensive discussion, he issued a powerful challenge to the deeply rooted "creationism".

this is a challenge of truth to falsehood, and the result is naturally the victory of truth. It can be seen that any effective doubt depends on careful analysis of facts and in-depth study of theory.

We have many young people who are not good at doubting and discovering. They believe that what is written in the book is correct, and what the predecessors said is the truth.

They are superstitious about books and worship their predecessors, and dare not cross the line. Such people, naturally, will not have any development, let alone any originality.

They have made little contribution to social progress, and may even become a stumbling block to social progress and hinder the development of human civilization. If there are more such people, our society will not progress and human civilization will stagnate.

so we must advocate the spirit of doubt. More than half a century ago, Mr. Lu Xun advocated this spirit through Diary of a Madman.

Now that the wheel of history has turned week after week, we should have picked up the steel gun of reverse thinking as a weapon to attack science. Geologist Li Siguang once said to his students: You can't see the truth without doubt.

this sentence also applies to us. If we want to increase our knowledge and seek truth, we must be suspicious and suspicious, and we must also question and explore doubts.

this is the golden key to knowledge. Young friends, bravely pick up this key and open the door to science.