A few days ago, the head teacher publicly said in class that I wouldn't go to the office to ask the teacher questions. The reason is that when I ask questions, I always ask the teacher a few words. He thinks I'm against the teacher, which makes him lose face, and the teachers I often ask are always from other classes. The head teacher also asked me not to tell other teachers that I am in this class, but to say that I am a student of Class 9. But the class teacher didn't know that in the process of asking questions, that is, sometimes I found the teacher's mistake and asked him to correct it. Sometimes I am wrong, let me understand. Once, a physics teacher in a top class mistakenly wrote the symbol "F" of force as "T". I asked him, "Isn't it a second? How did it become a force? " He just found out that he had done something wrong and corrected it in time. What if I don't say it? So when was he wrong? The same teacher wrote me this formula "F-mg" when asking another question, and then asked me if I understood it. I felt that what he wrote was a little wrong with the question I asked, so I said, "No, why F-mg?" He listened to my words and took another look. "Sorry, it's MG-F". If I don't ask the teacher, but pretend to understand as the class teacher said, then the teacher will probably make the same mistake when he talks about my question in his class. At that time, the whole class pointed it out, which was a shame. The mysterious Nanxia asked the chemistry teacher a chemistry experiment last week, which was about the reaction of sodium metal and water with phenolphthalein. The textbook says that water will become. That's what the chemistry teacher said in class, but I secretly did the experiment and found that the water turned purple (in fact, it was purple, and I began to make a mistake), so I went to the office to find the chemistry teacher. "It's purplish red," said the chemistry teacher. "It should be purple, but you can't say red in class." I said to the chemistry teacher. The chemistry teacher didn't know how to answer, so she simply ignored me. Some time ago, as soon as I entered the office, I heard the Chinese teacher in my class tell another teacher that the class representative in my class was not good and the class representative foundation was poor, although it was very innovative. I was misled by a famous saying "Imagination is more important than knowledge and insight" before, so I casually said, | "Nonsense" The Chinese teacher asked me, "Why do you call me nonsense?" I replied, "Innovation is more important than knowledge." The Chinese teacher said, "Without knowledge, how can we innovate?" It suddenly occurred to me that knowledge is the foundation and innovation is the development. Fortunately, I asked the teacher at that time, otherwise I don't know when I can correct this mistake. The above things can obviously make us understand that questioning is an improvement. Now I am studying physics in senior one, and I have learned a conclusion from the great ancient Greek scholar Aristotle that "force is the reason to maintain the motion of objects". More than two thousand years have passed, and no one has questioned it. No one asks questions, which seems nothing, but leads to a fact that we have to admit-physics has been at a standstill for more than two thousand years. Until another great man appeared, I now say that he is great because he did something that people have not done for more than two thousand years-questioning Aristotle's "truth". First of all, there is no need to take it personally. It's as if I, as a student, didn't bear a grudge against the teacher. I didn't want to go against the teacher. It is precisely because Galileo's doubts and his ideal experiments proved Aristotle's mistakes that Newton later published Mathematical Principles of Natural Philosophy, which made physics enter another stage of development. I wonder what the class teacher will say after reading my article. However, I still insist on my point of view: learning should be questioned. In constant questioning, we either find our own mistakes or correct each other's mistakes. -Mystery Man 200965438+February 26th at 22:4 1:26.

2. A common saying or proverb expressing doubt

Doubt: Doubt is the first step towards philosophy.

The only limit to our understanding of tomorrow depends on our doubts today. -(American statesman) Roosevelt

Great souls long for doubt. -(German philosopher) Nietzsche

Doubt is not a pleasure, but certainty is even more absurd. -(French Enlightenment Thinker) Voltaire

The most valuable quality of a person is that he can wisely realize what not to believe. -(Ancient Greek playwright) euripides

Doubt in the heart is like a bat in a bird. They always fly at dusk. -(British philosopher) Bacon

Re-evaluating all values is my formula for the highest self-affirmation activity of human beings. -(German philosopher) Nietzsche

If there is anything worse than pain in the world, it is doubt. -lev tolstoy

If you want to be a true truth seeker, you should have at least one period in your life, and you should doubt everything as much as possible. Descartes (French philosopher)

Doubt stimulates the mind like a needle. -(former Soviet writer) Gorky

Doubt is safer than confidence. -(China scholar) Massingue

Doubt eyes, like owl eyes, can only be seen in the dark, but light can blind it. -(British theorist) Jókai Móri

Doubt is an infinite exploration. -(Ancient Greek philosopher) Socrates

Doubt is an element of criticism, and the tendency of criticism must be skeptical. -(British writer) disraeli

Doubt can destroy yesterday's beliefs and open the way for tomorrow's beliefs. Romain rolland (French writer)

In order to pursue the truth, I must doubt everything as much as possible in my life. Descartes (French philosopher)

The process of scientific development is a leap from curiosity to doubt. -(American scientist) Einstein

Faith and doubt complement each other. There is no doubt that there is no real belief and speech. -(German writer) Hesse

Truly successful people have rebellious blood in essence. -(British writer) Orton

Doubt everything. -German philosopher Karl Marx

Never, right? -China modern writer and political critic Lu Xun.

I believe in the law, but I doubt the judge -Taiwan Province writer and critic Li Ao.

Lack of knowledge will arouse many doubts. -Francis Bacon, English Renaissance writer and philosopher.

The second heir is always suspected and hated. Tacitus, ancient Roman historian

The evidence tells us where to focus our doubts. ——

Like children, they never doubt the hope of the future. -Indian poet, writer and philosopher, 19 13 Nobel Prize in Literature laureate Tagore.

If a person has doubts about knowledge, what should he do or how to explain it?

There are many reasons why human knowledge is really limited.

First, for the whole universe, the places that we humans can reach at present are really insignificant, so it is a big question whether the knowledge about the universe obtained under such circumstances is correct.

The second is the definition of things around you, such as place, time, quality, length and so on. Compared with ancient times, it has been greatly improved, but we haven't found a truly unchanging benchmark (not necessarily). So much knowledge derived from these basic physical quantities can only be approximate.

Third, some philosophers find that the logic we use is not rigorous. There is a famous example: a barber in a village cuts the hair of people in the village who don't cut their own hair. There seems to be nothing wrong, but can he cut his hair by himself?

Fourth, the transfer of knowledge is also a big problem. There are many different interpretations of the same sentence; There are many different feelings about the same thing. . Of course, there are many other factors that may be more important.

……

However, in this way, it is still useful to cover up knowledge. As long as people know how to learn and make good use of it, why should they learn from alarmists?

4. Always doubt that others have better learning methods than themselves.

To study efficiently, we must learn to sort out our own learning situation and find out the problems (the places that need to be improved most or the weakest places, etc.). ); Then sort out the available time and make a timetable, taking daily as the unit; Reasonable allocation of study and review time, targeted study plan, one by one to overcome.

1. Ability: If you and I study in the same way, it only takes me ten minutes to finish this task, and you may need an hour to achieve it. This is the problem of efficiency, or the problem of learning ability. You can learn to master the ability of speed reading and memory and improve the efficiency of study and review. Speed reading memory is an efficient learning and reviewing method, and its training principle lies in activating the potential of "eyes and brains" and cultivating a reading learning mode with direct reflection of eyes and brains. For the practice of speed reading and memory, please refer to "Jingying Whole Brain Speed Reading and Memory Training Software". If you practice with software for more than 1 hour every day for one month, your reading speed can be increased by 5 or 6 times, and your memory and comprehension will be improved accordingly, thus improving your learning and review efficiency and achieving good results. If your reading learning efficiency is low, you can practice well.

2. Find the best learning method. You may be easier to master organized and clear content, and the messy knowledge points are confusing, so you need to learn to sort out the knowledge points you have learned; You may be very good at listening to the teacher's lectures, but reading by yourself is inefficient, so you must seize the limited time in class and master it efficiently; You may need to sketch while listening, write while listening, pure listening and pure watching will not make you concentrate, and so on. , find some characteristics of their own learning, so as to effectively and pertinently solve.

3. Learn to integrate knowledge points after learning. Classifying the information you need to learn and the knowledge you have mastered into a mind map or knowledge card will make your brain and thinking clear and help you remember, review and master. At the same time, learn to link new knowledge with what you have learned, and constantly mix and improve your own knowledge system. This can promote understanding and deepen memory.

4. Problem-solving: Problem-solving exercises are essential, but don't blindly question sea tactics and make a mess of yourself. Resolutely complete the problem independently when doing it, and put an end to plagiarism and sea tactics. The test questions can never be finished, but the types of questions are limited. You should learn to reflect, classify and sort out the corresponding problem-solving ideas. Learn to summarize by stages, understand your recent learning situation, and make adjustments and improvements.

5. Doubt and knowledge

"Scholars must be suspicious first."

Cheng Yi (2) "in the suspicious and not suspicious, never learn; Knowledge is in doubt. " Zhang Zai's understanding is based on facts and evidence.

There are two sources of facts and basis: one is what I saw with my own eyes, and the other is what I heard from others. For example, when the country is in danger, there must be a lot of oral news from all over the country, no matter how dangerous it is, it is the legend of others and not necessarily reliable; To understand the actual situation, we must observe it by ourselves.

The same is true of learning, the most important and reliable material is the factual basis that I have seen with my own eyes; But sometimes such evidence can't be seen with your own eyes, and you can only rely on other people's legends. (1) from the popular theory.

Gu Jiegang (1893— 1980), a native of Wuxian, Jiangsu, is a historian. ② Cheng Yi (1033— 1 107) was a philosopher and educator in the northern song dynasty.

③ Zhang Zai (1020— 1077), a philosopher in the Northern Song Dynasty. We should think about the legendary words and not believe them casually.

We believe it because it is; Don't believe it, because it's not. This attitude of thinking ahead and not believing casually is the spirit of doubt.

This is the basic condition for doing all learning. We heard that there were three emperors and five emperors in ancient China, so we have to ask: Who said that? In which book did you first read it? Who wrote the book you saw when? How did the author know? We have also heard that "rotten grass is a firefly", so we have to ask: How can a dead plant become a flying beetle? What is the scientific basis? If we can ask this question, all wrong theories will be broken.

No matter what kind of books and knowledge we have, we must experience our own doubts: think because of doubts, and distinguish right from wrong because of thinking; After three steps of "doubt", "thinking" and "discrimination", that book is your own book, and that kind of learning is your own knowledge. Otherwise, it is blind superstition.

Mencius said that "it is better to believe in books than to have no books", that is, to teach us a little skepticism, not to follow blindly and not to be superstitious. (1) 【 Huang San, five emperors 】 the legendary ancient tribal leaders.

There are different legends about who it refers to. Some people say that Huang San refers to Fuxi, Nuwa and Shennong.

The five emperors in Historical Records refer to the Yellow Emperor, Zhuan Xu, Di Ku, Tang Yao and Yu Shun. (2) 【 rotten grass for fireflies 】 This is the words in the Book of Rites.

Doubt is not only a necessary step to distinguish truth from falsehood, but also a basic condition to establish new theories and inspire new inventions from the front. It is ideological laziness to admit what others say without thinking or discount.

Such a brain is always passive and can never learn. Only the brain that often doubts and asks questions has problems, and if there are problems, it wants to find answers.

In constant questioning and solving, all knowledge will rise. Many great thinkers and philosophers in universities are cultivated from doubts.

Dai Zhen, a scholar in a university in the Qing Dynasty, read Zhu's "University Chapters and Sentences" when he was a child and asked when the university wrote it and when Zhu came. Su Shi told him that Da Xue was a book of Zhou Dynasty and Zhu was a great scholar of Song Dynasty. He asked how the Song people more than 1000 years ago knew what the author meant.

All scholars, not only for popular legends, but also for the theories of scholars of past dynasties, often argue with the theories in the book, often judge the theories in the book, and often revise the theories in the book: only in this way can newer and better theories be produced. Throughout the ages, new inventions in science, new theories in philosophy and new styles in art have all come into being in this way.

If later scholars stick to the old sayings of predecessors, there will be no new problems, no new inventions, all academics will stagnate and human culture will not progress. (1) [University Chapter] "University" is an article in the Book of Rites.

Zhu divided it into chapters and sentences, with annotations, and compiled it into a book, University Chapters and Sentences. (2) [scholar] is used to refer to a famous scholar with profound knowledge.

(3) [custom] refers to the general habits. Exercise 1: Read the text silently carefully and find out the central argument and two sub-arguments.

Second, to demonstrate with examples is to give conclusive, sufficient and representative examples to prove the argument; The argument of truth is to prove the argument with recognized theorem formulas and famous sayings and aphorisms of famous people at home and abroad. Try to give an example and a reason used in this article.

Third, talk with my classmates for two or three minutes on the topic "I have tasted the sweetness of doubt". These examples are needed to illustrate this point.

There is also an essay on Doubt and Learning below. Read them and answer the questions. Reading is expensive and doubtful.

Zhu, a poet in the Song Dynasty, said: "Those who learn without doubt will be taught to have doubts, and those who have doubts will have no doubts. Only here can they make progress. " Chen Xianzhang, an Amin scholar, said: "The predecessors said that learning is expensive and there are doubts, small doubts mean small progress, and big doubts mean great progress.

Skeptics have a chance to realize. Awakening and progress. "

Doubt can break superstition. Blind superstition of books is a taboo for reading.

Mencius said, "It is better to believe in books than to have no books." Therefore, in order to break the superstition of books and avoid falling into blindness, we must be bold and skeptical when reading.

Everything in the book is not necessarily beyond reproach. Xu Xiake, a famous geographer in Ming Dynasty, questioned the statement that "Minshan territorial waters" in the book when reading Yu Gong.

Later, through on-the-spot investigation, he finally came to a new conclusion that the Jinsha River is the source of the Yangtze River, which is a step forward from the traditional view in history books. Doubt can enhance interest.

If you can read with questions, your reading will be endless. The great scientist Einstein was interested in reading all his life. One of the important reasons is that he always reads with questions.

Doubt is often the forerunner to gain true knowledge and the key to open the treasure house of knowledge. Li Siguang, a famous scientist, famously said, "Without doubt, you can't see the truth".

This sentence is quite meaningful. Generally speaking, bold doubts and scientific doubts are often linked. Questions raised in doubts are bound to be solved in in-depth research, and solving problems is the beginning of gaining insights.

Hua, a famous mathematician, has made outstanding achievements in the field of mathematics because he can boldly doubt and scientifically solve the existing formulas, theorems and conclusions in books. His first step to climb the peak of mathematics began here.

Reading is doubtful, and its value lies in emancipating the mind, thinking independently, and daring to explore and pursue. However, advocating reading with questions is not a wild guess that is not based on objective reality and violates scientific principles.

Be suspicious.

6. composition with questions as the topic

No longer doubt (semi-propositional composition)

Author: Teacher Dong Mei from: Xin Quan Browse/Comment: 1, 088/3 Date: February 20, 2005 18: 36

In primary school, I was always suspicious. When I walk on campus alone, I always feel that someone is pointing at my back. When my classmates are talking and laughing, I always feel that they are telling me anecdotes; One of my gold-plated pens is missing, and I suspect it was stolen by * * *; When I participate in group activities, I always feel that my classmates are deliberately rejecting me. Because of my doubts, my friends have always been few, even my best friends have left me, and there is no chance to correct them.

It was a late autumn day and the campus was full of fallen leaves. Yellowing maple leaves are fluttering in the wind, and I don't know where they will go. I trudged into the classroom with my schoolbag on my back. As soon as I sat down, I heard several people talking loudly in the corridor. Because I am always very sensitive, I tiptoed to the door and listened to the people outside continue to say, "Do you know what Zhou Siyu is most afraid of? I am most afraid of caterpillars. I don't know how many times I was scared to cry when I was a child. Haha, let's make a simulation to scare her and make a fool of her. Haha! " Harsh laughter echoed in the stairwell. At this moment, the first person who flashed in my mind was Xiao A. Even my best friend betrayed me and even told others about the animal I was most afraid of. The door opened and the baby came in. I dragged her out without thinking. I stood still and said in an accusing tone, "why did you tell others my secret?" Do you still take me as a friend? " Xiao looked at me with innocent eyes and said, "I didn't, I never said it." I turned a blind eye to Xiao's eyes and said, "No, hum, no, how can others know?" I only showed you the diary. Did I say that myself? "I'm rude to little ah, didn't give her a chance to explain. After that, I turned to leave, leaving little boy screaming at the top of my lungs behind me. The dead leaves on the ground were blown away by the wind.

After that, Xiao called me many times, but I ignored her. Soon after, Xiao left without leaving any news.

Afterwards, those people came to me and said that they learned what animals I was afraid of from a diary I dropped on the ground, just kidding. It suddenly dawned on me that it was really "I told others". When I recall the beginning, when I was lost, I was comforted. No matter how others refused me, I never gave up. I really regret my doubt about Xiao A at the beginning. I understand that doubt is like a thick barrier, which separates the hearts of knowing each other, while trust is like a bond that wraps people and narrows the distance between people. Doubt is like a sword directly inserted between people, cutting off the bracelet of friendship, while trust is like a magnet, attracting people's hearts. From then on, I treat everyone with trust, get along with others sincerely, and no longer doubt at will. Gradually, my classmates smiled at me more and rejected me less, but the cost of this lesson was too high.

Autumn is still very cold, and my thoughts and guilt drift away with the autumn wind. I wonder if I can float to the right place.

Zhou Siyu, grade 20, three years.

(Without the consent of the author, it shall not be used on any paper media. Please indicate the author and source for network reprinting! )