Chapter 40 second quarter

In addition to the scientific and technological significance, the special research enterprise also has a profound meaning of "reserving talents for the country".In this regard, Ye Qisun's contribution should be unmatched.Among the scientists or educators of his generation, some may be more famous than him, some may be more knowledgeable than him, and some may be more powerful than him, but no one can mention so many scientific and technological talents as he does.With the eyes of a scientist and an educator, he stood on the peak of the country and the nation, willing to be a ladder in obscurity.

The stories of Ye Qisun and Ren Zhigong, Dai Zhenduo, Chen Fangyun and others In the 20th century, there were two people who were the first to study radio technology in my country. One was Feng Bingquan, a disciple of Ye Qisun, and the other was Meng Zhaoying, who graduated from the Department of Physics of Yenching University and later graduated from Tsinghua University.Then came Mr. Ren Zhigong. Ren Zhigong was a graduate of Tsinghua School in 1926. He first studied in the Department of Electrical Engineering of the Massachusetts Institute of Technology, and later entered the Department of Physics of Harvard University to major in radio. In 1931, he received a doctorate in physics.After returning to China, Ren Zhigong was hired by Shandong University to teach courses such as modern physics, electromagnetic theory of light, and elementary quantization.

Ye Qisun certainly knows the significance of radio science to China.When he presided over the first stage of recruiting foreign students, he set up the major of "Instrument and Vacuum Tube Manufacturing".Jiang Baozeng, Lu Baozhun and Hong Chaosheng who were sent to study have made great contributions to the radio industry of New China after returning to China. Of course Ye Qisun also knew the value of Ren Zhigong.In order to give Ren Zhigong a bigger stage, let him play a bigger role, and cultivate more radio talents, he strongly invited Ren Zhigong to join the Department of Physics of Tsinghua University.Taking advantage of Ren Zhigong's participation in an academic conference, he made a special appointment to meet with him and confessed his thoughts.Ren Zhigong was also greatly influenced by Mr. Ye Qisun. In the autumn of 1925, Ren Zhigong once heard a speech given by Mr. Ye. Mr. Ye predicted at that time that "wave mechanics" would be the main driving force of theoretical physics in the future.This was a hypothesis that was unheard of at that time, and Mr. Ye had already clearly outlined the characteristics of the wave force and the theoretical basis for its existence in his speech.Afterwards, it was 1925 when the western scientist Schrödinger published his paper in this regard.Ren Zhigong was very surprised: "Why did Ye Qisun foresee the development of the situation so early?" It was Ye Qisun's speech that inspired Ren Zhigong to make a decision to climb to radio science.Now, seeing that his mentor valued him so much, he readily agreed.

Unexpectedly, this matter did not go smoothly. After Shandong University learned of the incident, it turned on the red light. The reason for turning on the red light is very good. It is said that Mr. Ren Zhigong taught modern physics, electromagnetism and other courses. Once he left, these courses had to be stopped. It is a big deal for the school to suspend students. With such a reason, Shandong University He politely rejected the invitation signal from Tsinghua University. Coincidentally, at this time, Ye Qisun's first disciple Wang Ganchang returned from Germany.Seeing Wang Ganchang, Ye Qisun's eyes lit up.

Wang Ganchang returned to the Department of Physics.Thinking about being instructed by his mentor back then, he carried the country with his heart wherever he went, but he felt that saving the country through science was a big deal, and no matter how big he was, it was a trivial matter—this was the thought that Master Ye had deeply planted in his mind.Now, that thought is shining again.After Master Ye introduced the situation to him, he understood.The Physics Department of Tsinghua University is full of talents, including Wu Youxun, Sa Bendong, Zhou Peiyuan...but there is no such talent as Ren Zhigong who possesses the latest concepts in radio science.Vacancies and gaps, such phenomena are almost impossible to appear in Tsinghua University. It is like a team with a strong lineup, but there is a lack of strikers. This situation is incredible.Master Ye had a unique vision, he discovered this, and immediately dispatched troops, and he was an important pawn in his hand.

Wang Ganchang said to the teacher solemnly: I'll go, I'll go to Shanda University to exchange Brother Gong! Ye Qisun nodded in approval: I have wronged you, please take care! There is no ideological work, no passionate words, no earnest persuasion, everything is done under calm eyes.Under the arrangement of Ye Qisun, Wang Ganchang came to Shandong University and replaced him with Ren Zhigong. After Ren Zhigong came to the Department of Physics of Tsinghua University, he really lived up to everyone's expectations. Together with Mr. Meng Zhaoying and others, he made Tsinghua's radio teaching famous in a very short period of time.There is one more thing that Ren Zhigong will never forget.After the outbreak of the Marco Polo Bridge incident, Peking entered a state of war, and the marriage between Ren Zhigong and Ms. Tao Baotong was scheduled for a certain day in mid-July.Seeing that the wedding day is approaching, the smell of gunpowder in the war is getting stronger day by day. When the wedding day comes, it has turned into a complete war situation.Hearing the deafening gunfire and seeing the thick smoke covering the sky in the city, Ren Zhigong sat slumped in the courtyard of Mr. Ye's house at No. 7, North Courtyard, unable to speak a word.

Seeing Ren Zhigong's sad and disappointed look, Ye Qisun was very anxious. Can you inform the woman to postpone the wedding for a few days?he asks. Ren Zhigong looked at Mr. Ye, then lowered his head again. Ye Qisun suddenly realized that the road had been blocked and the phone had been cut off. Ren Zhigong was a master in radio science, so of course he would think of contacting the woman first.The current situation is so far away, if the groom is not present and there is no news, then why is he in a hurry? Ye Qisun suddenly remembered that there was still a small road leading to the city. If Ren Zhigong was sent to Xizhimen with the fastest speed, he would arrive at the wedding banquet venue within half an hour.

You just take my car, Xiaojin is a very skilled driver, he ran twice on the dirt road between crop fields during the war two years ago, no problem, you pack up, let Xiaojin take you to Xizhimen, as long as you enter the city , easy to handle. When Ren Zhigong heard Mr. Ye's words, he suddenly regained his energy. Under Mr. Ye's arrangement, Ren Zhigong drove all the way in Mr. Ye's private car on the field road where the wheat had just been harvested, and arrived at Xizhimen smoothly, catching up with his happy event. And this day is the day when the Japanese army occupied Beiping.

Although Ren Zhigong was hired by Ye Qisun when he was the head of the physics department, Mr. Ye resigned from the head position not long after, so they didn't get along for a long time.It was only when Ye Qisun was the chairman of the Special Research Committee of Southwest Associated University and Ren Zhigong was the director of the Radio Research Institute that they spent more time in contact. Regarding Ye Qisun, Ren Zhigong commented: "Mr. Ye Qisun is an outstanding physicist, a scientist with extensive knowledge, and has special attainments in the humanities. His contribution to the country's science education and the development of the overall science is of great importance. With the spirit of impartiality and selflessness, he has made outstanding contributions." (Ren Zhigong's "Remembering Teacher Ye Qisun", see "A Generation of Teacher Ye Qisun", page 36)

Different from the words of praise from other scientists, Ren Zhigong added another word of praise after this comment, saying that Mr. Ye Qisun is a "great man". Ren Zhigong now lives in the United States and is a lifelong advisor to Johns Hopkins University.When he learned that the haze over Ye Qisun's head was finally swept away by the progress of the times, he couldn't help feeling a lot of emotion.In order to find Mr. Ye's paper on the determination of Planck's constant, regardless of his old age and frailty, he made repeated investigations in several universities where Ye Qisun studied, trying to find this famous paper that marked his academic status. After unremitting efforts , finally found Ye Qisun's paper in the National Archives of the United States, and photocopied it back to China to show Ye Shi's natural and unrestrained talent, and at the same time offer his admiration and nostalgia for Ye Shi.

Dai Zhenduo is a ninth-grade graduate of the Physics Department of Tsinghua University.Unlike others, he transferred to Zhejiang University after finishing his first year.When he first entered Zhejiang University, he entered Zhejiang University as the seventh-ranked candidate, and he was successfully transferred to Tsinghua University in the second year, which shows that he is a very malleable and talented person. Dai Zhenduo is lively and loves to play.When he first arrived in Tsinghua University, he was unfamiliar with the place and had neither classmates nor friends, so he participated in many extracurricular activities to relieve his loneliness. He joined the military band, baseball team, and managed records in the music room. Where there are many people, there are others. He, wherever there is excitement, there is him, he is a person who can't sit down and stay idle.And study, in his own words, is "mediocre grades, well known by old friends in the same class". It was Ye Qisun who changed Dai Zhenduo. Dai Zhenduo and Mr. Ye met in the classroom of the Department of Physics of Tsinghua University.Because most of the physics courses were taken by Mr. Ye, and Dai Zhenduo was so different, his performance caught the attention of Ye Qisun. In order to attract his attention to the physical world, Ye Qisun took the initiative to approach this "lonely dancer".According to Dai Zhenduo, during his undergraduate years, Ye Qisun was the only teacher and friend he met in Tsinghua University. In the summer vacation of his junior year, Ye Qisun approached Dai Zhenduo and asked him what his plans were for the summer vacation. If there was no arrangement, would he like to go to Xishan for vacation with him.For the teacher's invitation, Dai Zhenduo was a little apprehensive.He knew that Mr. Ye was one of the most important figures in Tsinghua University, and most of the people he associates with were academic leaders. He was not very talented, and he was not outstanding among the students. Why did he appreciate himself so much? Dai Zhenduo started on the road amidst confusion and excitement.Facts have proved that it was this summer contact with Master Ye that brought about major changes in Dai Zhenduo's life and values. Many years later, Dai Zhenduo can still remember the details of Master Ye's influence on him: During a vacation in 1935, Mr. Ye invited me to go to Songtang near Xishan for vacation. This was the first time I got close to him.He brought many books, including history of science, history of Chinese literature, poetry and other reading materials.He likes to tell me the biographies of scientists, he especially admires Madame Curie, and sometimes talks about the history of Chinese mathematics and poems and other allusions.He often mentioned the specialties and hobbies of physics graduates, such as Feng Bingquan can run, Zhao Jiuzhang is good at Chinese medicine, Wang Zhuxi can play chess, etc.He rarely talked about his own life in the United States, and he never criticized others.I have benefited a lot from this short vacation. (Dai Zhenduo's "The Benevolent People Love", see "A Generation of Teacher Ye Qisun", p. 130) In Dai Zhenduo's impression, Master Ye didn't seem to criticize him at all.He just watched you silently, occasionally sent a knowing look, and said a word or two of concern, which will be unforgettable for a lifetime.Dai Zhenduo once participated in the Tsinghua University Southward Petition Group, and all members rode bicycles.Principal Mei led Pan Guangdan, Ye Qisun and other school leaders to dissuade him, but Mr. Ye did not say a word. At the end, he came to Dai Zhenduo, looked him over carefully, held his handlebars and said: Be careful along the way! .These words are simple and plain, but they have always warmed Dai Zhenduo's heart. In the winter of 1936, Dai Zhenduo joined the Suiyuan Daqingshan Anti-Japanese Frontline Service Group to comfort Fu Zuoyi's anti-Japanese troops on the front line.Another 4 people from the Department of Physics, Wang Tianjuan, Chen Fangyun, and Li Zhengwu participated.When he came back to see Mr. Ye, Mr. Ye smiled and said that many people in the Department of Physics participated in the labor force, which is really unexpected.Then he inquired in detail about the battle ahead and the history of the labor force, and also asked about the living conditions of the people in Inner Mongolia, his concern was palpable.This made Dai Zhenduo deeply feel that Mr. Ye did not only read the books of sages and sages. He did not read books for himself, but for the country. He only liked such people.He felt that Mr. Ye appreciated him in his heart, and he considered it a great honor and a deep motivation to be recognized by Mr. Ye. Another close contact with Mr. Ye was after the July 7th Incident.At this time, Dai Zhenduo had graduated from a bachelor's degree and was working in Union Medical College Hospital.As soon as the war broke out, Dai Zhenduo quit his job and followed in the footsteps of his teacher to Kunming.Under the arrangement of Ye Qisun and Ren Zhigong, he became a teaching assistant of the Radio Research Institute.At this time, Mr. Ye was the chairman of the Special Career Research Committee, and Ren Zhigong was the director of the Radio Research Institute. Their acceptance enabled Dai Zhenduo to resume his studies in a corner under the background of war. Not all students can enjoy such a blessing. Enjoyed.For Dai Zhenduo, this is not the only lucky thing, the luckiest thing is that he was once again invited to live with Mr. Ye.When he first arrived in Kunming, he and Mr. Ye lived in the Caishen Lane dormitory.Later, in order to avoid the bombing by Japanese planes, the research institute collectively moved to the suburbs, and they came to Grand Phuket again. This period was the period when Dai Zhenduo made great progress in his studies. In addition to his own hard work, there was another important external reason for the reason, which was the influence of Mr. Ye's morality and words and deeds—— During this period, he talked to me about the contributions of modern Chinese scientists. In addition to Tsinghua scholars, he often mentioned Ding Wenjiang, Weng Wenhao, Li Siguang, and the Hu brothers (Dun Fu, Ming Fu, and Gang Fusan). , Zhu Kezhen, Li Ji, Wu Xian, Wang Shoujing, Yan Jici, Rao Yutai, and Liang Sicheng.He once told me the chronology of Mr. Shoujing and Mr. Wang Jitong, which was very moving.Mr. Wang was a traditionally educated scholar in the late Qing Dynasty. He went to England to study mathematics and science. He created a new algebraic theory of current and voltage distribution in the analysis of telecommunication lines. He can be said to be the originator of the Chinese telecommunication industry.Master Ye also mentioned the theory he used to explain quantum mechanics. In the 1920s, Mr. Wang Shoujing made great contributions to quantum mechanics.He is the founder of the Department of Physics of Peking University.I discovered in the 1970s that Mr. Wang was the author of the early "Calculation of Confluent Hypergeometric Function" (confluent hyper geo-metric function). Such a complex function could be calculated at that time, which is the same as the great German mathematician Gauss (Gauss) to calculate the motion of celestial bodies. The data have the same purpose, from which we can understand Mr. Ye's admiration for Wang and his son.Mr. Ding Fanlin, an acoustician, moved from Guilin to Kunming. Mr. Ye asked me to visit him, because Mr. Ding created a chromatic scale flute, which does not use metal buttons, but only operates with fingers. He needs to practice with him alone. Ensemble, I became Mr. Ding's apprentice.Unless Mr. Ding's family kept this flute, it might have been lost.As long as there are jobs related to technology, Mr. Ye is always enthusiastic and encouraging. (Dai Zhenduo's "The Benevolent People Love", see "A Generation of Teacher Ye Qisun", p. 131) Dai Zhenduo's triple jump was completed in this way.From an undergraduate student to a radio researcher, he became a world-renowned university scholar, and later became a member of the American Academy of Engineering Sciences, and a professor of electrical engineering at the University of Michigan. He is like an athlete with great potential, and his wonderful life is amazing.But Dai Zhenduo is very clear about who gave him a decisive influence on his life.He is a grateful man. In 1972, when China and the United States had just established diplomatic relations, Dai Zhenduo, the secretary-general of the first visiting scholar delegation to China, together with his teacher Ren Zhigong and his wife, and classmate Lin Jiaqiao asked several times to pay homage to their mentor, Mr. Ye Qisun, but each time they failed, and they had no choice but to resent And back.It was only later that he learned about Mr. Ye's situation and that he had been "abandoned". In 1977, Ye Qisun asked a friend to send Dai Zhenduo a photo of his later years, and later asked his nephew Ye Minghan to bring him a book of Song Ci circled in red pen, plus a pair of ivory chopsticks that Mr. Ye gave him when he was studying abroad in his early years. This gift has been treasured by Dai Zhenduo until now. Chen Fangyun is a graduate of the tenth grade of the Department of Physics. When he graduated in 1938, Mr. Ye Qisun was still in Tianjin.One day, Mr. Ren Zhigong approached Chen Fangyun and said that he was conveying Mr. Ye’s meaning. Mr. Ye had already considered his graduation destination, and wanted to introduce him to work in the surveying department, where he could use his hard-working brain. The fine and subtle features can make extraordinary contributions in this field in the future.Mr. Ye's words made Chen Fangyun both surprised and warm.Since the outbreak of the war, I haven't seen Mr. Ye for more than a year. Who knows that he still misses himself, and he still cares about the whereabouts of the students even though he is thousands of miles away.Moreover, Mr. Ye is a person who knows people and is good at responsibility. What he said must have been carefully considered for a long time. Chen Fangyun thought about Master Ye's suggestion to do the measurement, and couldn't help but recall the many teachings Master Ye taught her in the four years of university.I remember that when I first took the physics experiment class in my freshman year, the first class was measurement.Among many students, Chen Fangyun did the most serious and accurate work, perhaps because he was deeply impressed by this matter, Master Ye kept this student's characteristics in mind.Master Ye can always remember the characteristics and strengths of the students, and constantly guide them.Chen Fangyun remembers that Master Ye often invited students to his home to play, "No doubt he wanted to get to know the students through this, and we learned the meaning, development and function of physics, as well as the way of learning from his conversations. What I remember most is that he said more than once that it is impossible for a scientific worker to be able to do everything, and he must stick to one direction in order to achieve something.” However, during the period before Ye Qisun’s future in Kunming, Chen Fangyun had already fallen in love with the direction of radio. He wanted to stick to this direction, so he followed Mr. Ren Zhigong to the Institute of Radio Research, and later he went to Germany to study and learn Or radio.Ye Qisun respected the choice of students. He was in charge of the right to study abroad at that time. He set up the "wireless gate". Since it was needed by the country, he gave the green light all the way and sent students abroad smoothly. However, as if it was destined, Ye Shi once said that Chen Fangyun was suitable for surveying, and he followed Chen Fangyun's life like a shadow. Even though he has become an expert in radio electronics, fate always drags him to drift in surveying and mapping —— When Wang Shengyuan, minister of satellite measurement and control, returned to the measurement center from the measurement mission of bringing back a new star from Beijing, the experts stood aside one by one.And this satellite called "Experiment No. 1" is to measure magnetic fields, X-rays and cosmic rays, and to experiment with new technologies such as solar electromagnetics and temperature control. "Secondary Jump" - easier said than done!Experts are needed. He was anxious and angry at home, seeing cats scolding cats and dogs scolding dogs.A figure flashed through the door and reported to him: "Minister, there is a so-called bourgeois academic authority here. He made contributions to the first satellite. What do you think?" "Where is the person?" he asked happily. That person—Deputy Director Liu pointed at a row of earth houses.Wang Shengyuan slapped his hat on his knees, stood up abruptly, laughed loudly and said, "I'll see him go." However, the old nine assigned by the Chinese Academy of Sciences went to the mountains to hunt pigweed after receiving re-education, and did not return at night. Under the tree, two donkeys were braying loudly, and he was so annoyed that he cursed at his mother. "What's the name!" He roared, causing the donkey to hang its head in fright. "It's irrelevant. Can hunting hogweed and satellite satellites be equated? - Idiot!" At night, he saw a man bent over to write and draw from the light of a will-o'-the-wisp, the corner of his short-sighted glasses blackened by the lamp smoke. "Chen Fangyun!" One of the few second-level professors in the Republic, who once studied in Germany, but now he does not look like a scientist. The old Zhongshan suit is dirty and torn, and he looks like an old accountant with a hunchback in the countryside.God!After not seeing each other for several months, the professor has been tortured like this! Wang Shengyuan felt sad for a while, broke into the room, and took off Chen Fangyun's glasses: "Professor Chen, don't wait. If you want to do it, you can't do it with your own money. Dude, look at your glasses." He wiped his glasses and smiled. Then hand it to Chen Fangyun. As soon as Professor Chen put on his glasses, he recognized him: "Ah, it's the Minister of Satellite Measurement and Control!" "Old Chen, to be honest, what do you think of our satellite measurement and control technology?" "Great, superb!" Professor Chen was very cautious, took out his notebook, and read like reciting, "Compared with foreign countries, Japan's first satellite is only 9.4 kilograms, the United States' 8.22 kilograms, and France... are all lower than my country's first satellite. A satellite is small..." "Yes. I can hear the cocoons in these chatterbox words, brother!" Wang Shengyuan interrupted him with a wave of his hand, patted his hat on his forehead, "Come on, go to Chunlai Teahouse, drink a cup of herbal tea to clear the heat!" The professor remained motionless and pondered for a long time before handing over a copy of "People's Daily", pointing to the forecast reports of our country's satellites passing by countries around the world: "What else are you talking about? You can read it yourself." "Old Chen, can you still not trust me?" He looked at the professor pleadingly, while moving his buttocks, "If you don't tell me, I'm leaving." Chen Fangyun finally blushed, and said slowly: "Two months before the launch of the satellite, Premier Zhou listened to the report in the Great Hall of the People. He asked very carefully, and he paid special attention to the forecasts of some major cities in the countries where the satellite passed. , while listening, adding the place names of the capitals of Yemen, Uganda, Zanzibar, Zambia, Mauritania and other countries. The prime minister said that the satellite overflight forecast of the capitals of these countries can inspire the third world. But now, we only forecast To the minute or a few tenths, developed countries in foreign countries can predict to less than a second, and we do not have many digits after the decimal point in the prediction of orbital parameters. According to the current level of measurement and control, it is impossible for us to do a good job in "Experiment No. 1" and recovery Satellites, especially recovery satellites, require high precision." After speaking, he handed over a manuscript he just wrote. Wang Shengyuan read the manuscript and secretly admired it: Lao Chen has two brushes.In this era, the instruments and ground equipment on satellites are engraved with "highest instructions" as a sign of catching up with and super advanced. Who dares to say that our satellites are not even half a word?Who dares to say that our measurement and control technology is not as good as foreign countries?He dares to think and speak, and has brains. This is a real talent, not a slave.With an expert like him, there is no need to worry about double jumps, triple jumps... This is the description of Chen Fangyun in "China's "Two Bombs and One Satellite" Revealed" by Mr. Peng Ziqiang.At this time, Chen Fangyun had already participated in the survey and control work of the "Dongfanghong 1" satellite. Since then, he has served as a soldier under the Minister Wang Shengyuan who loves talent so much as his destiny, and has justifiably devoted himself to his "destiny"—— work related to measurement. Regarding this point, Chen Fangyun recalled: "Although I did not consider Mr. Ye's suggestion because I went to Tsinghua Radio Research Institute with Mr. Ren Zhigong, I still think that Mr. Ye is very familiar with the characteristics of students. I know myself better. At the same time, I can see that he attaches great importance to the country's infrastructure." After Chen Fangyun became a well-known expert in radio electronics in my country, he also became a meritorious expert in "two bombs and one satellite"-satellite measurement and control expert. Many years later, the scientific nation-saving gene that Mr. Ye Qisun inherited to his spiritual world played a role again.He aimed at the "Star Wars Project" of the United States and accurately measured the position of China in the high-tech field. He couldn't sit still.He once said at a meeting: "In today's rapid development of science and technology, whoever can grasp the development direction of the high-tech field may gain an advantage in international competition. my country's economic strength does not allow the full development of high-tech, But it is possible for us to achieve breakthroughs in some advantageous fields first." So he found his senior brother Wang Daheng, and then contacted his senior brothers Wang Ganchang and Yang Jiachi respectively, and jointly wrote a letter to Deng Xiaoping and the central leadership comrades, enclosing their heavy Thoughts - "Suggestions on Tracking and Studying the Development of Foreign Strategic High-tech". The letter written by Wang Daheng reads: On the day when this personal letter was delivered to Comrade Deng Xiaoping's desk in Zhongnanhai, this great statesman discovered its great value with his unique keen insight.He immediately criticized: ("China 863", Li Mingsheng, Shanxi Education Press, December 1997 edition, p. 61) This is the origin of the famous "863 Project" in China.It is the "hand of God" that lifts China's scientific and technological circles.With its implementation and development, China's scientific and technological circles have emerged, which has greatly changed the pattern of the world's high-tech fields.And it all started with a letter written by four veteran scientists, all of whom were students of Ye Qisun, or students of his students. I don't know whether it is a chance or a coincidence, but at every critical moment that determines China's destiny, there are always prophetic politicians and scientists who join hands to turn the tide or make a final decision.This is how the atomic bomb is built, the hydrogen bomb is built like this, and the satellite is put into the sky like this.Most of the leading figures among these scientists are students of Ye Qisun.Today, when the tide of reform is rising in China, the students of Ye Qisun have launched a new round of scientific strategies that are synchronized with social changes. The "863 Project" took the lead in achieving revolutionary breakthroughs in the fields of biology, aerospace, information, laser, automation, energy, and materials. Its achievements will become a powerful driving force for China's continuous reform. It seems like a relay race with the century as the unit of time. When we go back to the source, we will find that in the depths of the vast history, there is a pair of eyes that stare affectionately.The baton in the hands of those scientists was passed down from him. One day in the late period of the "Cultural Revolution", Chen Fangyun saw Mr. Ye Qisun walking alone on the road in front of his dormitory.At that time, Chen Fangyun was in his dormitory. Looking out of the window, he saw the teacher passing by like a dream, so abrupt, he was stunned for a moment, and even missed the opportunity to open the window to call for his teacher, let alone Run downstairs to catch up with the mentor.This is the last side left to him by his mentor. For many years, Chen Fangyun has been in remorse and frustration. He has always regretted that he did not chase down the stairs to say hello to Master Ye. He said: "I still feel very sorry for Master Ye in my heart!"