A long time ago, the universe discovered a collision. The entire earth is a scorched earth, lifeless. About 3.8 billion years ago, a substance appeared on the earth, which was phosphorus. The basic substances that make up human life require phosphorus. After death, you will see many will-o'-the-wisps in the cemetery, which are phosphorus. With phosphorus, life began. After about 300 million years, 3.5 billion years ago, macromolecules appeared on the earth. With these macromolecules, there are animals, plants, microorganisms, etc., and life is getting closer. When did life or living things appear? There is no way to study it. How long is the history of human beings? About 4 million years. With people, there is medicine that studies people. This has been passed down vaguely without records. After there are written records, it takes about three thousand years.
We know that we need to pile up three thousand years of so-called books. Medicine cannot be piled up. We can only pick some typical people and things, divide them into stages, and pay attention to the development of history. It is not divided into stages. Why should it be divided into stages? It is the limitation of our descendants. In the past three thousand years, what kind of research have human beings done on themselves and biology? To talk about three thousand years of medicine, I can talk for ten hours, or I can finish it in two hours. I divide the three thousand years into four stages. Of course, history cannot be divided into stages. It is only for the purpose of summarizing that later generations divide history into different stages. First there is the 1,300 years from 1000 BC to the 3rd century AD, then the 1000 years from the 3rd century AD to the 13th century, then the three hundred years from the 13th century to the 16th century, and finally the 16th century to the present.
1000 BC to the 3rd century AD
Let’s talk about the first stage first. In these 1300 years, mainly in Greece, the Western world began to study life sciences. During this period, many people and things happened, and everyone only needs to remember three teams. One is Thales, his apprentice Anaximander, and Anaximander's apprentice Anaximenes. The main contribution of these three generations was entirely based on the accumulation and summary of cosmic phenomena, and connected the composition of the universe, the composition of the earth, and the origin of life. This way of observing and thinking has inspired many scientists. Thales was walking while looking at the sky when he fell into a big pit. There was no one around to save him. We said "sitting in a well and looking at the sky", but he was "sitting in a pit and looking at the sky" for three days. We can't see anything by looking at the sky, but he can't see anything at all. He can see when the solar eclipse will appear next year, and he can see that next year there will be good weather and a bumper olive harvest. After he was rescued on the third day, he used the little money his family had and borrowed some money to buy all the olive oil pressing vehicles around him during the winter. The next year, there was a bumper harvest of olive oil. Everyone came to rent his olive oil pressing truck, and he made a fortune. So I really tasted the sweetness of "technology is the primary productive force".
The second team is composed of four people: Aristotle, his master Plato, his apprentice, and his apprentice's apprentice. The main contribution of this team is to connect the changes in the universe with some basic phenomena of human beings. Plato was a philosopher and a life scientist in ancient times. He made many contributions, the biggest contribution being the establishment of a school, which lasted for 900 years. Sometimes there are crowds of people, but sometimes there is only one student, Aristotle. Aristotle made many contributions, including the taxonomy of plants and animals, as well as philosophy. He made a great contribution to genetics, and some of his ideas have not been confirmed or only partially confirmed to this day.
He said that fleas come from dust, which is of course wrong. But what he proposed about sexual and asexual reproduction is important. Do people have to have parents to have themselves? What about the first people? Some reptiles change with climate changes. When the temperature is high, they are male, and when the climate is cold, they are female. Some eggs are female when hatched at 23 degrees, male when hatched at 32 degrees, and male when hatched at 26 degrees. The one that comes out is between the two; the snail is a hermaphrodite, the male and the female are on the same body. Where did people come from? Do people have to have parents to be human? If this is the case, mankind will be miserable. According to a study, 50 years ago, men’s sperm count was 60 million per milliliter. It was no problem to have seven or eight children at that time. Now there are only 20 million per milliliter, so there are many infertility problems. In some small groups, infertility has reached 20%. If the baby cannot be born, this is mainly because the "seed" is not good, and some people blame the "base".
If there are only one million sperm, it will be impossible to give birth. So what will humans do in 50 or 100 years? Don't be nervous, everyone, at least our generations have no problem.
The third team is headed by Galen. Galen was a medical sage in the ancient West. He linked human understanding of nature to human diseases. Galen began writing books at the age of 13 and wrote 256 books, including 131 medical books. It took 12 years to publish his book, and 12 years to finish reading it. It was different from now. Nowadays, most people write books by copying them. At that time, there was no place to copy. His theories and discoveries have dominated medicine and life sciences for more than 1,000 years, and future generations will rely on him even when they are wrong. His death marked the end of ancient Greek medicine as a whole.
Now back to China, China is mainly about traditional Chinese medicine, of course there are other Tibetan medicine, Hui medicine, etc., but it is mainly about traditional Chinese medicine. What is the source of traditional Chinese medicine? Some say it comes from saints, some say it comes from witches, and some say it comes from natural phenomena. For example, if a dog is injured, he will find a kind of grass to lick the wound. If a mouse is poisoned, he will take the initiative to drink yellow mud water and his stomach will not hurt. In ancient times, the productivity of human society was extremely low. They practiced slash-and-burn farming, sowing extensively and harvesting little. They worked at sunrise and rested at sunset. Despite the hard work, they still had neither food to eat nor clothing to cover their bodies. How did medicine come about? In order to fill their stomachs, everyone eats any grass. It turns out that some are edible and have benefits, while others are not and may cause poisoning. We caught animals and ate them, and found that eating the liver replenishes the liver, eating the lungs replenishes the lungs, and eating the tail replenishes the whole body. Of course, those last words were mine.
During this long period of 1,300 years, many people and many things happened in China. Everyone should remember at least three books and three people. Which three books? The first recommendation for basic medicine is "Huangdi Neijing", the first recommendation for clinical medicine is "Treatise on Febrile and Miscellaneous Diseases", and the first recommendation for pharmacy is "Shen Nong's Materia Medica". The "Huangdi Neijing" is very well written, and not many can surpass it. It advocates holistic medicine, considering a person as a whole and advocating the balance of yin and yang. What is health? It’s all about balance. The eyes open and close, the breath goes in and out, the hands and feet stretch and shrink, this is balance. Some people are very strong. Does being strong mean being healthy? I often treat people. Three years ago, an old lady was so weak that I thought she wouldn't live long. Unexpectedly, she came to see the doctor again three years later, and she was still the same as before. That's because she is weak in every part of her body and maintains a balance. Some people are very strong, and they were playing basketball well yesterday, but suddenly they have a myocardial infarction and die. Therefore, balance is very important for a person's health. How to adjust the balance? Yin and Yang, there is Yang within Yin, and Yin within Yang, the two must be balanced. What is the treatment of diseases? To restore the balance of yin and yang, it should not be too strong or too weak.
Traditional Chinese medicine talks about the internal organs, which is different from Western medicine. The Traditional Chinese Medicine Department of our hospital studies "spleen deficiency" and translates it to foreigners, but they don't understand. How can this "spleen" be deficient? Spleen deficiency syndrome in traditional Chinese medicine refers to a disease caused by a weak spleen. According to traditional Chinese medicine, the spleen promotes circulation, digestion, and immunity, and is a manifestation of multiple functions. The five internal organs refer to the heart, liver, spleen, lungs, and kidneys; the six internal organs include the small intestine, gallbladder, stomach, large intestine, bladder, and triple burner. However, some internal organs are incomplete, such as the pancreas in gastroenterology, which is not included in the "Huangdi Neijing". Why doesn't it? Because after death, the pancreas is automatically digested and cannot be seen once dissected.
The "Huangdi Neijing" emphasizes the whole. Do you believe in Qigong? Life is a reaction produced by the interaction of various cells and molecules. There is a bucket of very salty brine. What does it become when you put meat in it? bacon. If you drive a pig in, will it come out as a salty pig? no. why is that? Because cells have an energy that can resist foreign invasion. Just like Qigong, I cross my left and right hands, and the left side is ready. If you hit the left side with a wooden stick, what will break? wooden stick. If you hit the right side by mistake, what is broken? The hand is broken. It's like a child being spanked and saying, "Mom, please spank me. If you are prepared, the spanking will not hurt so much. If the spanking hits the other side that is not prepared, it will be very painful."
Next, "Treatise on Febrile and Miscellaneous Diseases" talks about the dialectics of cold and heat, deficiency and excess. Talk about the dialectics of watching, hearing, asking and understanding. It advocates dialectical treatment. Different diseases are treated with different medicines, and the same disease has different causes. The third book is "Shen Nong's Materia Medica", which records 365 herbs, divided into 120 kinds of medicinal herbs, 120 kinds of traditional Chinese medicines, and 125 kinds of medicinal herbs. The upper medicine is tonic and the lower medicine is to attack. Traditional Chinese medicine is both tonic and attack. What matters is compatibility, and there are many taboos.
When seeing a doctor, a doctor must be in contact with the patient. He cannot just look at the test report. In the past, when checking for diabetes, there was no way to check for sugar. The doctor tasted the patient's urine. Until the Cultural Revolution, when I went to the countryside, the teacher from the public health center still took me to check like this: Five cups of urine under the sun, he tasted it in the front and I tasted it in the back. He tasted it calmly, but I tasted it overwhelmingly. Why? He dipped this finger into the urine and tasted it with that finger. I dipped this finger into the urine and tasted it with this finger. But the final result was the same. The teacher saw which cup of urine had flies and ants. That is diabetic urine.
Let’s talk about three people next. The first one is Zhang Zhongjing. He served as the governor of Changsha. He served very well in the official position, but later he was dismissed because of the more than 200 people in his family, only about 70 died of illness. He went home and learned to cure diseases and save people, and he really became a famous doctor. The second one is Bian Que. He once worked as the housekeeper (guest room manager) of an inn. He made friends all over the world and met a very famous old Chinese medicine doctor. So he stopped being a "manager" and devoted himself to studying medicine. As soon as he learned it, he became "Bian Que" and wrote "Bian Que's Internal Classic" and "Bian Que's External Classic" to help people all over the world. He was very famous and was jealous of the imperial physician Ling, who took the opportunity to kill him. The third one is Hua Tuo. Hua Tuo is very famous. He cured Cao Cao's migraine, so Cao Cao wanted to keep him as a "health doctor". Hua Tuo refused to do it. He went to treat people's diseases and was arrested. Hua Tuo was very busy treating diseases and saving people, and had no time to write a paper. Hua Tuo wrote a small book when he had time in prison, but it was not passed down. The jailer did not dare to pass it on and burned it. But two things were passed down. One is Wuqinxi, which is the current radio gymnastics. One of his apprentices practiced Wu Qin Xi and lived to be 101 years old. Another one is the invention of Ma Fei Powder. Before him, people performed operations without anesthesia. What to do, a pound of liquor, the patient drank half, and the doctor drank half, to strengthen his courage. If it still doesn't work, ask a few people to hold it down. Hua Tuo invented Ma Fei Powder 800 years earlier than the West.
The 1,000 years from the 3rd century to the 13th century AD
This is the end of the 1,300 years at home and abroad. Now let’s talk about the second stage. By these 1,000 years, Western life sciences have regressed to almost zero. Why? Political corruption, social unrest, the rise of religion, the popularity of theology, and the development of science were severely damaged, and in the end they were gone. During this period in China, clinical medicine continued to develop. This period in China was its heyday, including the Qin, Han, and Tang dynasties. Political clarity, social stability, and scientific and technological progress. The capitals of many dynasties were in Xi'an. Foreigners say that they have never been to China without visiting Xi'an. The Chinese say, "The talented generals from Jiangnan and Shandong are buried in the loess of Shaanxi." There are more than 250 emperors in Chinese history, and more than 70 are buried in Shaanxi. Many of them are very accomplished and influential emperors. Do you know that there is Mr. Wu Zetian? If a woman does something good, she is called Mr. Otherwise, she is called Ms. Mr. Wu Zetian married two emperors in her life, gave birth to two emperors, became an emperor, and influenced a large number of emperors.
For a thousand years, because of political clarity, social stability, scientific and technological progress, people live and work in peace and contentment, and medicine and medical scientists are greatly respected. At this time, medicine and science have reached the pinnacle of the world, one is zero and the other is the pinnacle. I hope everyone will also remember Three Books and Three People. The first person was Wang Shuhe. He made two major contributions. First, he passed down Zhang Zhongjing's "Treatise on Febrile and Miscellaneous Diseases" and second, he wrote his own book called "Mai Jing". Dividing the pulse feeling into dozens of types with different combinations to find out whether you are pregnant, especially when giving birth, the accuracy is very high. Unlike me now, I am basically 50% correct. . Do you have a heart disease? God, the emperor wanted to examine these doctors. He called them over and asked a man and a woman to hide under the mosquito net and each stretch out a hand. He took a pulse. What happened? This is a monster. One hand is female and the other is female. The hand is male. His "Pulse Sutra" spread to Europe through Arabia.
The second character is Sun Simiao. He lived for more than 100 years and wrote "A Thousand Gold Prescriptions". He advocates "the sincerity of great doctors," which means that if you want to be a doctor, you must be highly skilled in medicine. You cannot do it for the purpose of making money, let alone get red envelopes. If you think about how much you can get from an operation, you will definitely not be able to cure people. If you use medical skills as a tool to make money, you will be punished by criminal law; if you have a medical accident, you will be punished even more. Of course, if you are a good doctor, you can enter the Hanlin Academy. The third Tao Hongjing was a pharmacologist in the Tang Dynasty and wrote the "New Materia Medica". This is the first pharmacopoeia in China and the first in the world, 800 years earlier than the West.
Three people and three books, scientists get great respect, science gets great respect, and medicine gets great respect. Fan Zhongyan said: "If you don't want to be a good prime minister, you should be a good doctor." That is to say, if you don't want to be a prime minister, your second career is to be a doctor. Respect for doctors and medicine reflects a nation’s civilization and admiration for science.
Three hundred years from the 13th century to the 16th century
The 1,000 years of China are over, followed by the three hundred years of the West, which are the three hundred years of their rise. Because the Renaissance happened. Why did the Renaissance happen? Because political corruption has reached the point where "officials force the people to rebel, the people have no choice but to rebel." In addition, the plague is prevalent, and in some countries a quarter of the people died within a few days. The third reason is that there was a Chinese who brought China’s four great inventions there. Who was this person? Genghis Khan.
So medicine was revived and a large number of scientists appeared. For example, the anatomist Leonardo da Vinci. In the past, people who studied anatomy either became a painter or a doctor. Leonardo da Vinci was left-handed and wrote a lot of things that others could not understand. The second one was Vesalius of Belgium. He did a lot of dissection and found some solid evidence. A girl died. Her uncle said it was poisoning, but he said no, it was caused by the girdle. At that time, Western women had to corset their waists, making their bellies smaller and smaller. He said this was caused by long-term blood blockage. After this, it had a major impact on Western society. Women no longer tied their waists. This was a revolutionary change. In addition, he also corrected the mistakes of Galen's rule for a thousand years, including more than 200 errors in skeletal anatomy alone. He said that the human thigh bone is straight, but Galen said it was curved. People argued that Galen was right. They used to be crooked, but now they are straight. This is because humans have been wearing pants for a thousand years and they have become straight. Galen said there were seven human sternums, but he said there was only one. People argued that Galen's heart was magnanimous at that time, so he had seven intestines, but now he has only one intestine for his small belly. Vesalius was very angry. He said to the students, you can't just believe in authority. What you learn through practice is better than what you learn by following authority. Later he was persecuted and he didn't even know how he died. Another example is that Santu Leton started metabolism. He found that people ate so much but didn’t take out that much. Where did the difference go? To find out, he built a wicker chair and weighed it with a stick. Sitting on a wicker chair every day, eating, drinking, having diarrhea, and weighing myself. After more than thirty years of research, it was finally discovered that people have to "sweat", and thus the science of metabolism was born. There are too many scientists to talk about it all. In short, Western medicine fell behind in the previous 1,000 years, but has caught up in the past 300 years.
In this period of China, starting from the Song Dynasty, the capital was moved to Kaifeng and Nanjing. From the Song Dynasty, Cheng-Zhu Neo-Confucianism began to be taught. It was all talk but no practice, and science was very hostile. Foreigners use gunpowder to make guns and cannons, while we make fireworks. For example, printing is used by others to spread scriptures and preach, but we print ghost notes. People used compasses to sail and discover new lands. We used them to read Feng Shui, and we still read them today. There is also an alchemy that we started to do, which was also the beginning of the Western chemical industry. We use heavy metals to make elixirs, and seven emperors of China died because of taking elixirs of immortality.
Our medicine is gradually declining, but because of its rich accumulation, there are still several major events worth mentioning. Li Shizhen is one. He passed the scholar examination three times and passed the examination, but he had no position. Later, he studied medicine by himself and worked as a medical practitioner in Tai Hospital. When he was 33 years old, he began to travel around the mountains, tasted medicinal herbs, and wrote "Compendium of Materia Medica". Around the 13th century AD, Chinese medicine began to apply "variolation" to prevent smallpox, becoming a pioneer in medical immunology in the world. In the 13th century, smallpox was epidemic. Without China's "vaccination method", perhaps human beings would not exist. Voltaire said that this is an excellent and intelligent nation, and the "vaccination technique" they invented saved mankind. Current immunology still cannot explain clearly what "vaccination" is. This is how things developed. Others came up in three hundred years, we went down in three hundred years, and China and the West met in the sixteenth century.
400 years from the 16th century to the present
In the 16th and 17th centuries, there was a scissors gap between Chinese and foreign medicine. In the 400 years since the development of stone, there was a huge gap between the two. At that time, China's per capita GDP was about the same as that of Britain, France and Germany, both around US$600.
However, the first industrial revolution created a powerful Britain, and China was dreaming; the second industrial revolution created a powerful Germany, and China was still like a sleeping lion; the third industrial revolution created a powerful Japan, the United States, and China are still sleeping.
400 years later, when China’s price rose from US$600 to US$1,000, Japan’s price was 35 times that of ours, that of the United States was 32 times, and that of Britain, France and Germany was 25 times. If the world's 100 dollars were divided, the United States would take 32 dollars, Japan would take 13 dollars, Britain, France and Germany would each take 5 dollars, which is already 60 dollars, and there would be 40 dollars left to be divided among the remaining countries. China took 3 pieces and divided them among 1.3 billion people. Some people say that if a tiger doesn't show off its power, don't treat it like a sick cat. I think it's not as good as a sick cat because a tiger eats more.
During this period, a large number of scientists appeared abroad. At this time, foreign science was on the rise again, and two of the greatest scientists appeared. One was Galileo, who developed macroscopically and invented that we have now landed on the moon. There was also Leeuwen Hook who invented the microscope, and medicine has since developed towards the microscopic level. Many people came out in the 16th century. For example, Flemy invented penicillin, Pasteur discovered that biological decay is caused by microorganisms, and Nista invented disinfection, making great strides forward.
Everyone knows Darwin. His father and grandfather are both scientists, and his grandfather and uncle are also famous scientists. It's a pity that he didn't study hard and changed schools many times but couldn't learn well. His father was angry and said that he was only worthy of catching mice and insects. At that time, the British fleet had a five-year voyage to travel around the world, and two people were selected to participate. It's a pity that no one signed up. Darwin said he wanted to go. His father disagreed and said that unless another person as stupid as you convinces me, I will let you go. As a result, Darwin's uncle came to persuade him, saying that since he was just catching mice and insects at home, he might as well let him go out and experience things. His father agreed. After five years, I realized the origin of species and the principle of "natural selection and survival of the fittest". In the long-term evolution, if you can adapt to changes in the environment, you can survive. Unexpectedly, Darwin still liked to play after returning home. He played for ten years without writing a paper. Later, Wallace wrote a better paper than he did, even though the latter did not participate in the voyage. Darwin became anxious and withheld his paper without publishing it. Later, Darwin's friends asked you to write about it too and publish both of your articles in the same magazine. Just like that, both papers were published. Later, Wallace proposed to classify this as "Darwinism". Darwin was very moved. He didn't expect that there were people in the world who were so wronged and still gave their things to others.
In the past 400 years, Western science has developed very rapidly, and there are a large number of scientists, too numerous to mention. However, China talks about theory and golden mean every day, confusing the boundaries between right and wrong, and blurring the boundaries between progress and backwardness, which has greatly hindered the development of science. At this time foreigners began to send missionaries into China. A pastor said that when foreign guns could not lift a crossbar in China, he used a scalpel to open China's door. Various Western medical theories and Western medicines began to enter China. Look at the current Western medicine theories, more than 90% of which are Western theories. How many of the current instruments and equipment are produced by China itself? 97% of the medicines we take are imported from foreign countries.
What is even more ridiculous is that some people come out to openly oppose traditional Chinese medicine. The existence and development of human beings is the history of fighting against diseases. Traditional Chinese medicine has enabled the Chinese people to thrive to this day. Can you say that there is nothing scientific about it? The word "science" has only been around for 1,000 years. How many years has Chinese medicine been around? Traditional Chinese medicine has its own theory, which is judged according to the standards of Western medicine, just like playing table tennis is judged by the standards of playing basketball.
Looking back on these three thousand years of history, I have several insights:
First, cherish the current social environment. The 18th National Congress of the Communist Party of China called on us to innovate in science and technology and drive development through innovation. This is absolutely true. When medical science develops, society often progresses. Therefore, the comrades here must cherish the current social environment and take responsibility for the right times in life.
The second point is to use philosophical thinking to consider science and study science. Many great scientists are philosophers in the end. Philosophy is a science that studies science and laws. Science is within a limited range. One plus one must equal two, but philosophy is not. In philosophy, as long as one plus one equals the result, it will be fine. It depends on whether your result is good for me or not.
Some people say that everything is Chinese medicine that is unscientific. What does Chinese medicine mean? Science was only a thousand years old when science came out, and Chinese medicine is already thousands of years old. If you say that Chinese medicine is unscientific, why don't you say that science is not Chinese medicine? Many people regard the word science as the truth, which is wrong. If you say that what you do is unscientific, then I am unscientific. Don't treat everything in the world scientifically, then it is the truth. It is difficult to say. When I say science is the most important, I say not necessarily. Safety is more important than science. Don't say that science is eternal and truth is not eternal. Why are some truths eternal? It's because you can't live that long, and it will change if you live that long. So when water flows to lower places, it is because of the attraction of the earth. If you want to go to the sky, it will stop flowing to lower places. When the sun rises in the east, that is because the earth rotates. The earth may not rotate in the future. You don’t even know if the sun is still there. How do you know the sun is there? There is sunlight. It came out eight minutes ago, right? Didn't you cum five minutes ago? The meeting of the Cowherd and the Weaver Girl on the Magpie Bridge happened sixteen years ago. They had been running away for sixteen years. If in thirteen or fourteen years, the Cowherd and the Weaver Girl had already moved on, would they still meet again? So when you look at anything, you have to look at it dynamically. If you don't look at it dynamically, something will happen, and you will be depressed. What is moving forward? A person's 360 degrees are all the direction of progress, it's just about the point you face. So I have two sentences to share with you, which are also my motto. The first sentence is "Always move forward." There must be "waves rolling in the sky, cross-currents flowing through the sky, only moving forward, boats flying on the waves, smiling back." The spirit of "Kishimatsu Sora is at ease", the second sentence is called "denial to the end". "Pangu created turmoil in the world, and the sun and the moon come back and forth as usual. I have seen the universe and known thousands of history. I dare to laugh at Qu Weng and throw himself into the river." Always move forward. Life must be marked in a direction. Keep moving forward. Don't let the road ahead be difficult. And don't be tempted to retreat just because there are wonderful things on the left and right. Otherwise, even if you go forward and circle three times to the left and three times to the right, you will never achieve anything.
The last point is to return from the micro to the macro. With the development of medicine to the present, it has become more and more microscopic. Since Leeuwenhoek guided science from the macroscopic to the microscopic, human research has become more and more detailed. From tissues to cells, to subcells, molecules, atoms, and then to quarks, we are becoming more and more microscopic. In fact, the microscopic can only see certain things. Everything is at a certain macroscopic level. It is wrong to leave the macroscopical view. Many of our doctors can only treat one disease, which delays a lot of things. Just go back to the macro, why? For example, if someone sees Huashan and Emeishan, they can figure out the difference after going there for a while. This is a macro perspective. But someone studied the sand in Mount Emei, and compared it with the sand in Mount Huashan, there was no difference. The sand is different, the bricks are different, but there is no difference when it comes to the elements. There is basically no difference when it comes to the elements. Why are you studying it? Are you full? Therefore, we must stand at a certain level and return to the whole. We are not looking at the patient's disease. Looking at people's diseases is to treat people's illnesses, and only those who see the disease are superior doctors. I hope that what Guiyang Medical College teaches is to treat people, not their diseases.
In the face of the advancement and retreat of medicine over the past three thousand years, we have many, many feelings. We once had glorious times, but now we are in very embarrassing times. But as hard-working and brave Chinese people, we only need to cherish the current society. Environment, as long as we use philosophical thinking to consider science, and as long as we return from the micro to the macro, we will surely realize the great rejuvenation of the Chinese nation politically, as well as the great rejuvenation of science and medicine. The setting sun and lonely mist fly together, and the technology of autumn water and long sky will appear in front of the comrades from time to time. Students, are you ready? Thank you all!