1. Good words and sentences in the book The Story of Hua Luogeng

Hua Luogeng was born on November 12, 1910 in Jintan County, Jiangsu Province. He came from a poor family and was determined to study hard. When I was in middle school, in a math class, the teacher posed a famous problem to the students: "There are things today that I don't know the number of. If you count three or three, you will have two. If you count five or five, you will have three. If you count seven or seven, you will have two." Asking about the geometry of things?" While everyone was thinking, Hua Luogeng stood up and said, "23" His answer surprised the teacher and was praised by the teacher. From then on, he fell in love with mathematics.

After Hua Luogeng finished the first grade of junior high school, he dropped out of school because of his poor family. He had to stand at the counter for his parents, but he still insisted on studying mathematics by himself. After his unremitting efforts, his paper "The reason why the solution of the quintic equation of Su Jiaju's algebra cannot be established" was discovered by Professor Xiong Qinglai, the director of the Department of Mathematics at Tsinghua University, who invited him to Tsinghua University; Hua Luogeng was hired as a university teacher, which was very important in Tsinghua University. This is unprecedented in the history of the university.

In the summer of 1936, Hua Luogeng, already an outstanding mathematician, worked as a visiting scholar at the University of Cambridge in England for two years. At this time, news of the anti-Japanese war spread throughout Britain. With strong patriotic enthusiasm, he returned to his motherland to give lectures at Southwest Associated University.

Hua Luogeng paid great attention to the direct application of mathematical methods in industrial and agricultural production. He often went to factories to provide guidance, popularized mathematics applications, and wrote popular science books.

Hua Luogeng also set a shining example of self-taught for young people. He is a self-taught mathematician without a university diploma. He said: "Not being afraid of difficulties and studying hard are my most important experiences in learning mathematics well." "The so-called genius relies on persistent efforts."

Hua Luogeng is also a mathematics educator. He has trained students like Wang Yuan, Chen Jingrun, Lu Qikeng, Yang Le, Zhang Guanghou and many other outstanding mathematicians. In order to cultivate the younger generation, he wrote some extracurricular readings for middle school students

Hua Luogeng's famous sayings.

1. Over time, we have accumulated meritorious deeds, and we have made every effort to make every effort possible.

2. I think that people have two shoulders, which should play a role at the same time. I want to use one shoulder to carry the burden of door-to-door delivery, and deliver scientific knowledge and scientific tools to the hands of master workers; the other is to carry the burden of door-to-door delivery. A shoulder can be used as a ladder for young people to climb to a higher level of science.

3. Scientific achievements are accumulated bit by bit, and only long-term accumulation can turn the bits into a sea.

4. Study and research are like climbing a ladder. If you want to climb up step by step, if you try to take four or five steps at a time and reach the sky from the ground, you must be able to fall.

5. Genius lies in accumulation, and intelligence lies in diligence.

6. There is no smooth road in science, and there are countless rocks and shoals in the long river of truth. Only herb collectors who are not afraid of climbing, and tide-drifters who are not afraid of huge waves, can climb to the top to collect fairy grass and go deep into the water to find Li pearls.

7. The ability to think independently is very necessary for engaging in scientific research or any other work. In history, any major scientific invention is due to the inventor giving full play to this original spirit.

8. Time is made up of minutes and seconds. Only those who are good at using sporadic time will achieve greater results.

9. Genius is not trustworthy, intelligence is unreliable, and it is unimaginable to pick up great scientific inventions by chance. 2. Good words and sentences in the biography of Chen Jingrun

After the publication of the article "Goldbach's Conjecture", Chen Jingrun was mentioned all over China, which became a national spectacle. But at the center of the whirlwind is calm. When honor, status, fame and fortune were showered on him along with flowers and applause, Chen Jingrun showed extraordinary calmness. In these areas that the world pays attention to, he is like a child who is not familiar with the world. He only occasionally looks at the special world like flowers with surprised eyes.

Every day, letters like snowflakes arrive from all directions, most of which are letters of condolence. Among them, there are many love letters from girls. He didn't take it seriously. I still hang out in the library every day, or sneak into that six-square-meter hut. Out of curiosity, people came to the Institute of Mathematics to see Xu Chi after reading his reportage, especially reporters. Thanks to the kind secretary Li Shangjie, in order not to disturb Chen Jingrun too much, he was able to block him. Try your best to block it, but sometimes, you have no choice but to let people see Chen Jingrun's "knife handle-shaped" room. There is a single bed, four radiators, a small square table against the wall, and the most in the room is scratch paper, that's all.

Chen Jingrun’s entire mind is still focused on Goldbach’s conjecture, and he wants to further improve it (1+2). Chen Jingrun's thinking was different. The more famous he became, the heavier the burden he felt on his shoulders. It seemed as if there were countless eyes watching him. They were anxious longings and eager expectations, and the number theory crown he thought about day and night. The pearl, (1+1) in Goldbach's conjecture is just like the top of Mount Everest and the infinite scenery, calling him all the time. He has always hoped to conquer (1+1) with his own hands and fulfill the long-cherished wish of generations of mathematicians.

In September, it was still the golden autumn in Beijing, and some people still wore shirts. He still couldn't live without the faded cotton coat made of loose blue fabric. Habits die hard, and he still likes to put his hands in his sleeves and wear his cotton hat with ear protection. The temperament and appearance of celebrity Chen Jingrun have not changed much from before. Occasionally, people will find Chen Jingrun reading a letter while walking. Sometimes, he will laugh alone. People who are familiar with him can't help but ask: "Is it a courtship letter from a girl?"

Chen Jingrun's picture looks a bit... His pale face suddenly turned red. Is he still shy?

He smiled like a child. What he held in his hand happened to be a photo of girl Zhang. The strange girl, who was as beautiful as the moon, was showing her most beautiful face to Chen Jingrun. Strangely, Chen Jingrun just wasn't moved.

He never showed the tender letters of love from these girls to anyone else, including very close friends. He thanked these innocent girls for their love and their high trust. He sealed these letters carefully and hid them in a place where they would not be easily found. Chen Jingrun's door to love was tightly closed. Whether he cherished his beautiful first love or his thoughts, he was completely occupied by mathematical formulas and theorems, and even Cupid's arrow could not penetrate the mathematician's magical territory.

Things are different now. Chen Jingrun, who was discriminated against and neglected by others in the past, has already achieved a lot of honors. However, whenever the Institute of Mathematics and the Chinese Academy of Sciences review progress and awards, he always sits in a corner and remains silent. When he heard someone mention his name, he immediately stood up, saluted you, and said repeatedly: "Thank you, thank you! I'll spare it, spare you--" After saying that, he looked at everyone sincerely, with a look in his eyes. Showing pleading. He never fights for honor, and piously gives it to others.

He seemed to have a premonition that time was really precious to him, just as Mr. Lu Xun felt: "Do it quickly!" People found that he was still in such a hurry, with his head down when walking. Head and head on the road. His life is still as simple as before. A few steamed buns and a little salty rice are enough to complete the meal. For a while, Chen Jingrun's relatives thought that since he was famous, his finances must be good. Occasionally, they would write letters asking for support.

Being a celebrity is not easy. He declined all kinds of entertainment if he could, but there were two aspects that Chen Jingrun was happy to attend. One was to give lectures to primary and secondary school students in Beijing. He liked the innocence and purity of children, and placed his hopes in them. As long as time permits, he will definitely make the appointment. The second is to accept the invitation from your hometown and alma mater. Participate in a variety of alumni associations and alumni events. Needless to say, my alma mater is Xiamen University. The Yinghua Middle School where he attended invited him, and he happily went and gave a passionate speech. The little-known Sanming No. 1 Middle School is where Chen Jingrun went to junior high school. At that time, Chen Jingrun was only 13 years old. The principal of Sanming No. 1 Middle School came to Beijing to see him. Chen Jingrun warmly received him, happily took a group photo with him, and wrote an inscription to Sanming No. 1 Middle School, "I wish my alma mater a prosperous future." The article "Recalling My Middle School Era" he wrote listed all his grades in the second grade of junior high school, which has become an extremely precious historical material for us to study and study Chen Jingrun today:

Algebra 99 Chinese 92 English 89 Geometry 83 Chemistry 88 History 83

Geography 85 Drawing 85 Music 85 Physical Education 80 Physiological Hygiene 82 Labor 75

Chen Jingrun himself wrote in the article: "I can sing and dance. Innocent and lively, look, music is 85, sports is 80! "We have been married for a long time, and he has a score of 99 in algebra. He is still in the second grade of junior high school and has already started to show his talent.

Chen Jingrun, who is famous, has no celebrity style. Live a clean life and tackle problems conscientiously. He is a big, simple tree. (Excerpt from Shen Shihao's "The Biography of Chen Jingrun", abridged) 3. The scientist Archimedes has good words and sentences

Archimedes (Archimedes, about 287~212 BC) is the greatest ancient scientist. Greek physicist and mathematician, he was the founder of scientific spirit and the founder of mechanics and fluid mechanics.

He is recognized by the mathematical community as one of the five greatest mathematicians in the world throughout history (the other four are Euclid, the founder of geometry, Leibniz Newton, the founder of calculus, and modern mathematicians Mathematics giant Gauss);

He is also recognized by the physics community and the history of science and technology as one of the three greatest scientists in the world throughout history (the other two are Newton and Einstein).

Except for the great Newton and the great Einstein, no one has made such a huge contribution to the progress of mankind as Archimedes. Even Newton and Einstein drew wisdom and inspiration from him.

He is "the ideal incarnation of theoretical genius and experimental genius in one person." Leonardo da Vinci and Galileo during the Renaissance all regarded the scientific giant Archimedes as their role model.

4. Good words and sentences about science

When studying and studying, we must pay attention to two disadvantages. One is "malnutrition". There is no certain literary and historical foundation, no scientific theoretical preparation, and no third. The collection of first-hand information will produce things that are either sallow and thin, or abnormal development; the second is "indigestion". For book knowledge, no matter ancient or modern people or an authoritative theory, we must study deeply, chew carefully, and think independently. Don't swallow dates wholeheartedly, follow what others say, go with the flow, be careless, and stop at a superficial taste. Ma Yinchu

Education! science! To learn to read is to light a torch; every syllable of every word sends out sparks. Hugo

As a scientist, my success...the most important thing is: love of science-infinite patience in long-term thinking about any problem-diligence in observing and collecting facts- Considerable inventive ability and common sense. Darwin

When you want to drink water, you feel as if you can drink the entire ocean - this is faith; when you actually drink, you can only drink two cups in one *** - this is science. Chekhov

In science, every road should be explored. Discovering a dead-end road is a great contribution to science. ... Let me do the thankless work of proving that "this road is unavailable"! Einstein 5. What are some good words and sentences about the wonderful kingdom of mathematics?

Mathematics is a spirit, a rational spirit. It is this spirit that inspires, promotes, inspires and drives human thinking to the most perfect level. It is also this spirit that tries to decisively influence human material, moral and social life; it tries to answer questions about human existence. questions; strive to understand and control nature; strive to explore and establish the deepest and most perfect connotation of acquired knowledge. ——Klein's "Mathematics in Western Culture"

Mathematics is one of the main expressions of the free creativity of the human mind, in addition to language and music, and mathematics is used to understand the universe through the construction of theories. The medium of all things. Therefore, mathematics must remain the main component of knowledge, skills and culture, and knowledge and skills must be passed on to the next generation, and culture must be passed on to the next generation. ——Excerpted from the words of German mathematician Hermann Weyl

Mathematics is the queen of science, and number theory is the queen of mathematics. Gauss (Gauss) music can inspire or soothe people's feelings, paintings can make people happy, poetry can move people's heartstrings, and philosophy can make people feel happy. People gain wisdom, science can improve material life, but mathematics can give all the above. ——Klein

The essence of mathematics lies in its freedom. ---Cantor

In the field of mathematics, the art of asking questions is more important than the art of answering them. Cantor

No question can touch people's emotions as deeply as infinity. Few other concepts can stimulate the intellect to produce fruitful thoughts like infinity. However, there is no Other concepts can be as demanding of elucidation as infinity. ——Hilbert

Mathematics is an infinite science. -- Hermann Weyl

Problems are the heart of mathematics. --P.R.Halmos

As long as a branch of science can raise a large number of questions, it is full of vitality, while the lack of questions heralds the termination or decline of independent development. --Hilbert

Some beautiful theorems in mathematics have this characteristic: they are easily summarized from the facts, but the proofs are extremely hidden. ---Gauss

Philosophers also need to learn mathematics, because they must jump out of the vast sea of ??ever-changing phenomena and grasp the true essence. …and because it is the shortest way to the transition of the soul to truth and eternity. ---Plato

Gauss (the prince of mathematics) said: "Mathematics is the king of science"

Russell said: "Mathematics is symbols plus logic"

Bi Dagorath said: "Numbers rule the universe"

Halmos said: "Mathematics is a unique art"

Misra said: "Mathematics is human "The highest achievement in thinking"

Bacon (British philosopher) said: "Mathematics is the key to the door of science"

The Bourbaki School (French mathematics research group) believes: "Mathematics is the study of abstract structures."

Hegel said: "Mathematics is God's symbol for describing nature."

Wilder (President of the American Mathematical Society) said: "Mathematics is a A culture that will continue to evolve"

Plato said: "Mathematics is the highest form of all knowledge."

Court said: "Mathematics is the most brilliant pearl in the crown of human wisdom."

Descartes said: "Mathematics is a tool of knowledge and the source of other tools of knowledge. All sciences that study order and measurement are related to mathematics.

"

Engels (philosopher of dialectics of nature) said: "Mathematics is the study of quantitative relationships and spatial forms in real life

Klein (American mathematician) said: "Mathematics It is a rational spirit that enables human thinking to be used to the most perfect degree."

Galileo said: "Give me space, time, and logarithms, and I can create a universe." "The Book of Nature" It is written in the language of mathematics." Newton said: "Without bold conjectures, great discoveries cannot be made." Halmos said: "The creation of mathematics can never be obtained by inference alone. First of all, it is usually some vague Make guesses, speculate on possible extensions, and then draw conclusions that are not very sure. Then organize your thoughts until you see the clues to the facts, and it often takes a lot of effort to put everything into logical proof. This process does not happen overnight. It requires many failures, setbacks, repeated guessing and speculation, and it is common for several months to be spent in vain. ”

Laplace. Said: "In mathematics, our main tools for discovering truth are induction and simulation"

Wittgenstein said: "Mathematics is a variety of proof techniques"

Hua Luogeng said : "New mathematical methods and concepts are often more important than solving mathematical problems themselves"

Napier said: "I always try my best to get rid of the heavy and monotonous calculations" < /p>

Kepler said: "I have spent the best time of my life pursuing that goal...The book has been written. It does not matter if it is read by modern people or by future generations. It may take a hundred years before there is a reader."

Napoleon said: "Only the vigorous development of mathematics in a country can show the strength of its national foundation. The development of mathematics is closely related to the best and the prosperity of the country." 6. Wonderful Kingdom of Numbers Good words and sentences How to write and after-reading comments

Wonderful Kingdom of Numbers, good words and sentences, and after-reading comments

The Wonderful Kingdom of Numbers is a gift dedicated to young children by mathematician Professor Li Shupei. This is an interesting mathematical fairy tale, and the short stories in the book are humorous. There are also some math questions interspersed.

The story begins like this. Two fifth-grade primary school students accidentally broke into the Kingdom of Shu and found that there were two armies fighting, which was quite lively. Once we understand the situation, it turns out that the odd and even numbers are at war. In the kingdom of numbers, 0 is the king. 1 and 2 are the commanders of the odd-numbered team and the even-numbered team respectively. On this day, Commander 1 and Commander 2 were fighting over being the "number of men", and they were fighting fiercely. 0The king has no choice. Finally, smart Xiaoqiang learned from King 0 that Commander 2 most admired the ancient Greek mathematician Pythagoras. In the words of a mathematician, all numbers are numbers in which I am included in you, and you are included in me—a blind date number. quelled the war.

There are also several children’s favorite stories about Sun Wukong and Zhu Bajie, which fully demonstrate Sun Wukong’s cleverness and wit and Zhu Bajie’s honesty and cuteness.