In summer, the blue sky is dotted with white clouds, the temperature in Jiangning is pleasant, and the city is leisurely outside the city. In the bright summer sunshine, there are shades of trees falling between roads and courtyards, and birds fly on the painting boats on the riverbed. In between, pedestrians come and go in the ancient city, and the voices of artists telling stories and playing and singing rang out in the restaurants and teahouses. The aroma of clear tea mixed with the voices of friends converging and talking, becoming part of the season's picture scroll.
The time is the afternoon, the courtyard on the side of the city has the aroma of boiled tea, and the black and white chess pieces on the chessboard under the shade of the plane trees are mottled brightly and darkly. on.
"...Mencius has said that the people of the realm do not use the boundaries of the frontier, the country does not rely on the dangers of mountains and rivers, and the world does not rely on the benefits of soldiers and revolutions. Those who have attained the Tao will be helped more, and those who have lost the Tao will have little. However, since ancient times, those who have helped a lot at one time may not necessarily be the ones who have attained the Dao. Those who have lost the Dao and those who have little help often regard themselves as those who have achieved the Dao. What is the Dao? This sentence knows…”
The boy is not tall, and his face still looks childish. He is about eleven or twelve years old. He is only dressed in a white long gown and a neat scarf on his head. He looks like a mature little adult. In fact, at this time, the children of ordinary people did not see much of the world at the age of eleven or twelve, and they always wore the children's double-horned bundle, that is, the bun on both sides. Because it looked like a horn, it was called "the total horn" in ancient times. , There is also a sentence in the Book of Songs "The banquet of the chief corner, Yan Xiaoyan".
But there are always various distinctions in these things. Children at this time are usually crowned between the ages of fifteen and twenty to show their adulthood. However, if it is a farm family, there are often children born at the age of thirteen or fourteen, and many people have to bear the burden of the family before fifteen. If the children in the city, after being educated, know more things, they tend to regard themselves as scribes. At this time, the society is full of literary style, and some children and teenagers can write a few poems and often dress up in Confucian clothes and scarves, little adults. It's similar, but it's full of vigor. As long as the dress is simple, no one will say anything. For example, it is not surprising that a fifteen or sixteen-year-old boy is full of words, pointing out the country, and partnering with prostitutes.
The young man talking in the courtyard at this time was Zhou Junwu, one of Ning Yi's disciples. He used to be a lively child in the past, but in the last year, he has become more mature. Of course, an eleven- or twelve-year-old child is limited in how mature he is, but it is mainly because he has some ideas in his heart, he is no longer playing around like he used to, and he also consciously "grew up". At that time, the appearance of a little scholar seemed to be somewhat heroic.
At this time, he stood there talking, and while he was talking, he thought, and organized his words, naturally, to answer the questions of the elders in the courtyard. In the shade of the trees, Qin Siyuan and Kang Xian were finishing a game of chess, and after asking a few questions, he made a discussion on the "Great Dao Debate". On the side of the courtyard, there was also a girl sitting on a low stool watching this scene. The girl was not very old, and she still had a double bun on her head. Small feet with white embroidered shoes, the girl rested her chin in her hands, and watched the scene with a slight smile. She had a fan in her hand. Since the weather was not too hot, she only occasionally fanned a small stove next to it that was boiling hot water. teapot. This is naturally the little county master Zhou Pei.
It has been several days since Ning Yi left Jiangning. Although this pair of young brothers and sisters are still in the Yushan Academy, they are basically separated from their studies there. As usual, their studies are basically controlled by Kang Xian, and naturally there are others in the palace or the consort’s palace. The husband is a professor. Zhou Pei has not yet reached the age of 笄, but after all, she is "old". As for her learning progress, she only follows her liking. The requirements are not strict, but she still has considerable requirements for Xiaojunwu.
Of course, although he is often bullied by powerful older sisters, Zhou Junwu's brain is still smart, and his studies are not top-notch, but he is at an average level, so he won't be too bad.
"The Great Dao Debate" is a topic with a lot of essential oils. This topic was not written by Qin Siyuan and Kang Xian, but was brought up by the young man based on a few words that Kang Xian said. They also smiled at each other.
"Blossoms," said one.
"Too big for nothing." Another commented.
The evaluation is not good, but as a question that tests the young man's ability to think alone, he finally passed the test. Xiao Junwu also knew the characters of the two grandfathers, and he rubbed his ears and smiled. In fact, after the master went to Suzhou and Hangzhou, the grandfather of the Qin family was also going to go to Beijing. He came here today and saw that some things were already packed. Grandpa Consort has been playing chess these past few days, and he is probably preparing to send him off.
"After your master left, you will study with several masters in the palace. I'm afraid it will be different from the progress in Yushan Academy. You can still keep up with your studies, can you understand?" Qin Siyuan laughed.
"Understood." Zhou Junwu saluted and laughed, "Actually, Master Zhang and the others have already passed the students' progress, and they are also talking about the following courses, and they have said the previous ones again. But even if it is Afterwards, when the masters were talking, the students always felt that they knew a lot better. In the past, when the master taught, he always said a lot of irrelevant things. The latter things have been mentioned, so although there are many things that have not been learned yet, the masters feel very familiar and understandable when they talk about it. It’s just… hehe, it’s a bit boring.”
Saying this, the two old men looked at each other and smiled, and then their faces became stern. Kang Xian said: "Don't be complacent, Master Zhang and the others are also today's great Confucian scholars, and they are quite knowledgeable and insightful. Everyone's teaching methods are different. Although you think you understand a little bit, you may not be able to learn the true meaning of Master Zhang's knowledge. What they said and said, Although I understand it, the more it is like this, the more careful thinking it is.”
Jun Wu nodded respectfully: "Yes, when the master left, he also said the same thing. He said that every teacher has his own skills. As a student, he should learn to think, and good things must be learned. As for what it means. Okay, it always needs to be verified in future practice. Any idea can be active, but you can't be arrogant."
"It's really hard to find a master like Liheng..." Qin Siyuan laughed, Kang Xian shook his head angrily, but Zhou Junwu looked a little proud of this master, and the little county master, who was holding his chin, smiled. His eyes narrowed into a line, as if he was thinking about something. Qin Siyuan then tested Jun Wu's mastery of the Four Books, chatted with Kang Xian for a while, made a pot of tea, and when he was about to start a new chess game, he talked about Ning Yi again.
"Before Li Heng left Jiangning, he told him about going to Beijing, but Li Heng seemed to have concerns in his heart. In fact, it was always difficult to grasp what he was thinking. From my point of view, it seems that he also has concerns about the Great Dao in his heart, so he is cautious."
Kang Xian nodded: "He has a very good way of doing things. It's just that I can see that in the past, I always disapprove of the secular officialdom. If he can figure it out to help you, you will be in the capital and do all kinds of things. Also less."
Qin Siyuan shook his head slightly: "Li Heng has always been calm in his work, but his goals are often radical and thorough, but he himself has such abilities, and he probably understands it in his heart. He told me when he left. , if he really wants to do something, even he himself doesn't know whether it is a good thing or a bad thing. For example, I have been thinking recently, what will be the final result of the alliance with Jin and Liaoning, I do not know, Jin Guoda, who Knowing if it will be another Liao Kingdom, sometimes, if you have good intentions, you may not be able to do good things."
"At least there is a chance. Jin and Liao will fight. As long as we seize the opportunity and win a few battles, we can recover the mountains and rivers, but if we can't win in such an opportunity, then it's not your business. "
"If this is the case... the country should also perish..." Qin Siyuan frowned, remembering these words. In fact, if ordinary people say it, this is really a bit outrageous, but it's no problem here, Kang Xian also frowned. Qin Siyuan lowered his voice, "Actually, I think Liheng is worried about this."
"Um?"
"What he thinks in his heart has always been as simple as his style of doing things. That day I heard him say this, it seemed like a joke, but it may not be in reality. Maybe in his opinion, I am so weak, if so There is a day when I can't seize such opportunities, such a country... is to die..."
"How could this be..."
"The opportunity already exists. I will go to Bianjing. I will cooperate with Li Xiang and let him rectify the military affairs. But whether it can be done well, I am afraid there are still many difficulties. Oh, since ancient times, the affairs of the world have been small changes. They are all with countless difficulties, those who want to make great changes, have ten problems, and have nowhere to go. He said: 'You old man's future is not clear, so I won't mess with you.' Haha, although it's a joke, Li Heng is afraid of these things. It is also clear that he has this insight. I am afraid that he has thought about how to do it and how to seize this opportunity. He has also thought about the difficulties. Maybe he thought too hard and had prejudices in his heart, so he was discouraged. That's why he kept pushing back."
"Someone has to do it."
"The more intense things are, the more changes there are, the harder it is to know the outcome. Li Heng may feel that his style of doing things is too intense. After all, he has never entered the political arena. Just relying on his imagination, he is afraid that he will be too persistent in the future, so he started to live in seclusion. Nian. I've been thinking about coming these days, and that's the only reason."
"Heh, I didn't do it before, so I thought I understood, is it too arrogant?" Kang Xian laughed.
"If it were someone else, I would say the same thing. Even if you are in your early twenties, even if you have a high self-esteem, and predict the future, you will only think that you can be a magistrate of the county. But Liheng, I can't say it. The second thing is to act stubbornly. Among the younger generation, I have only seen it in my life. He is born with the ability to see what people think, and can control them to achieve their goals. If this person is in troubled times, he will be a hero, but he treats himself His ability is both cognition and restraint, which is what I really appreciate. When I invite him to Beijing this time, he may not really reject him in his heart, but on the one hand he is aware of the difficulties in the future, and on the other hand, he is aware of his own actions. There is awareness, because I am afraid of doing bad things, but I have restraint. In my opinion, this is not shrinking, but just makes me appreciate him more."
The old man smiled again: "However, I'm not worried about whether he is born or not. With this ability, he will come out sooner or later. Let him figure out everything by himself first."
The two talked at this time, but did not avoid Zhou Junwu next to them. After all, he is different from ordinary students. If it is an ordinary student, it is the most important thing to respect the teacher and respect the Tao. The two will definitely not talk about his master in front of him, but Jun Wu is the little prince of Kang Wangfu after all. Although it is said that the Wu Dynasty managed the masters strictly, on the other hand, Zhou Junwu was also a disciple of Kang Xian. Kang Xian's wife, Princess Chengguo, owned a large number of royal properties. To pass it on, you need a nod from above. Jun Wu is actually trained as one of the managers. After all, Ning Yi is a person who is too difficult to grasp. If something really happens in the future, the evaluation of the two at this time will become a major reference in Jun Wu's heart.
Of course, it was also because this was a positive comment that the two of them talked about it. When they were talking, Jun Wu frowned and looked a little hesitant. After he finished speaking, he just laughed. Qin Siyuan glanced at him with a smile: "Jun Wu just discussed the Great Dao debate, and some of them are Liheng's views, right?"
Jun Wu hesitated slightly, then nodded: "Master also said it, but... Above this paragraph, Master seems to be hesitant to say anything."
"Hehe, your master was afraid that he would say too much, but he would frighten you. He, I'm afraid he would say that the great way is the one that is useful after you use it up, and what you say is useless. However, Jun Wu, you follow along. Liheng, I think, what I learn the most is not the poetry, the four books and the five classics, but how to see things and think about things. You think a lot of what Master Zhang and the others taught have become easy to understand, of course, it is also because Liheng mentioned it, but The main thing is that you think more."
Jun Wu nodded vigorously.
"But learning to think too early may not be good." Qin Siyuan smiled, "Actually, people who read, can read and write, and in the end, they will broaden their knowledge, and then learn how to think. As long as they really learn how to think, then Learning other things is to infer other things, and get twice the result with half the effort. Your master always teaches to let you learn to think as soon as possible, so he tells those stories and guides you to use your brains. In this way, you will learn faster. But you are too young now, I don’t have enough experience and think too much. In fact, I am biased. In the end, I am afraid that I will be arrogant. I feel that Master Zhang can’t compare with Teacher Ning, and then I think that what Master Zhang said is not reasonable enough, and may even begin to feel that the articles of ancient sages and sages There is a fallacy... You have your own ideas, and you start to be arrogant and arrogant! Jun Wu, you must remember these words clearly."
Qin Siyuan has always been generous and kind to the younger generation. Just now Kang Xian said that Jun Wu's argument was "big and unreasonable", and he just said "flowers are full of splendor", but at this time, his expression began to become serious, and in the end, it even became a bit stern. Jun Wu also quickly sat upright and listened to the teaching. After a while, Qin Siyuan's expression softened.
"So generally speaking, when teachers teach their disciples, they just let you remember at first, and when you are really old and can really see some things, then let you think, so that your foundation will be much solid. Of course, I am not Saying that your master's teaching is wrong, just by looking at the matters he told you, you can see that he also attaches great importance to it. He has some control, but you are a child after all, and Grandpa Qin is about to go to Beijing, so I want to warn you about it again. It’s a good thing to think about it, but as your master said, don’t be arrogant. Even if you don’t agree with what other people say, even if you think it’s outdated, you must remember it carefully, as long as you can remember it, you will grow older in the future , one by one, you will find why others think that way, you will find the reason, and you will find the benefits of doing that."
The young man bowed solemnly: "Jun Wu remembers it."
"That's good." Qin Siyuan smiled, "However, even though you and Liheng also studied the Four Books and Five Classics, the main reason is not for this. What is the study of the matter, Jun Wu, do you think it is useful? ? You should have some insights now."
"It's useful, it's useful." Jun Wu has always been lively. He just took the test and listened to the teachings, and he was also positive, but when it came to the object, the little boy's face suddenly seemed to light up, he nodded and nodded again, "The object is the object, the object is the object. that is… "
He seemed to want to promote this concept to others, but it was difficult for him to organize amazing words for a while, Qin Siyuan smiled and said, "Oh?"
"Uh, checking things is... Master said a word, physics... Oh, the foundation of the study of checking things is to make bold guesses."
"guess?"
"Well." Jun Wu nodded, "No matter what you see, you can guess, guess why, and then make a formula or theory that can be used, but this theory must be universal, as long as there is one If you don’t deserve it, you have to overturn this guess and continue to guess…”
"Just guess?" Qin Siyuan frowned, understanding these things.
"Well, it's usually a matter of scrutiny, but Master said that you must have imagination. If you don't understand anything at all, if you want to understand it, you must first guess. Well, what Master said is some basic. The truth is, for example, a straight line can be drawn between any two points; the straight line can be extended arbitrarily…”
Jun Wu began to babble about the basics of grid physics he had learned. It could be seen that the little boy was a bit of a missionary. The old man listened to those simple truths: "How about guessing these things?"
"This is the basic composition, Grandpa Qin, physics can't be taken for granted. Although the theory can be guessed, the verification process must be rigorous, step by step, and every step must be absolutely accurate..." Jun Wu vigorously promoted Cong Ning The concept that Yi learned from there, "These things can be made into very complex things step by step. Grandpa Qin, everything in the world came from this way. After learning it, we can know what it is called and what can be called. Why can the lever be transmitted? Force... Force, ah, let's put a stone here as a fulcrum, press this side hard, and the other side will rise, we can calculate how high it will rise, and then put a gear there, what will happen to the gear Move, there can be another gear after the gear, and then add a lever, like a waterwheel, a windmill, we can make very complex things…”
"Isn't there already a waterwheel and a windmill?"
"But it can be more complicated. Grandpa Qin, you don't know. Master designed a very simple thing for us, starting with a waterwheel, adding levers and gears, and then we made a printed board. A brush is smeared with ink, and then the board is pressed down to print a page, the board goes up, and another claw pulls the printed page away, pulls another sheet of paper over, and bangs Re-printing... bang re-printing, Master said this is called assembly line..."
After all, the little boy's eloquence is not very good, and it is too complicated, and he dances: "Of course, we have to consider the toughness of the paper, the uniformity of the ink, and the loss of the machine. But these can be counted, even if it is paper, as long as we get it. Knowing why paper can become paper, we can make better paper. Master said that it is because of plant fibers or something, but we still don't quite understand it. Oh, we can also calculate the quality of iron, Grandpa Qin, you Do you know that the reason why iron is hard and brittle is because there is something that can be burned in it, that is, carbon.
Qin Siyuan was already looking at Kang Xian at this time. He didn't ask too much about Ning Yi's things at first, and he was a little disapproving of it. But at this time, a silhouette was gradually heard. And what Jun Wu learned along with Ning Yi, Kang Xian must know, the two old men looked at each other, Qin Siyuan said: "Bold guess, but use the most serious deduction, every step has to be buckled..."
Kang Xian nodded: "Specifically, I can't see too much now, but I have some things that Liheng told Jun Wu, and I have people to write down and think about. There is a pamphlet now, and I will let people know tomorrow. Let me show it to you, to be honest, it's just guessing and derivation. It's really broad and profound. But... I'm afraid there will be some troubles in it, you can help think about it."
Qin Siyuan nodded. Jun Wu next to him didn't understand what "trouble" meant. He felt that there would be trouble in completing the derivation, and he was still talking excitedly.
"Grandpa Qin, have you ever thought about why the kite can fly into the sky? Why does the Kongming lantern fly into the sky? Because when the wind blows, the kite is inclined at an angle, because this angle will decompose the force into one backward and one forward. Up, as long as the wind keeps blowing, there will always be upward force. As long as we can make a big wing, keep moving forward and reach a certain speed, we can fly... Of course, the master said that this requires tougher materials Cooperate, as long as we can understand the truth of the bellows, we can make a better bellows, make the furnace higher temperature, make better iron, and make cloth that is less likely to break, anyway, no matter what In this way, we have been calculating recently, as long as we have a large wind area and a high speed, we can fly... I can definitely build a big kite that can fly... "
When he said this, there was some fanatical longing in his eyes. The two old men were thinking about the content of his words for a while, but they didn't notice this expression, and then Jun Wu shook his head again: "Of course, this is a long time later. The thing is, the development of basic industries will take a long time..." He repeated Ning Yi's words.
"Anyway, when Master leaves, let's think about a few things. The first one, we already know that everything has a force in it, but... How does this force come from..." He jumped on the ground , "As soon as we jumped up, we immediately fell down, why did we fall down, why did the apple fall down, why did the earth pull us, why didn't we float up..."
"This, Liheng also makes you think?"
"Well, this is just to think about, of course, I also feel strange now... The second question is, when we are at the seaside, when we see the boat go away, the mast always disappears at the end..." He shuddered , "Grandpa, this is very scary, we see things are straight, if the mast always disappears at the end, it means..."
Jun Wu swallowed a mouthful of saliva, then took out a piece of paper, with a strange and terrifying light in his eyes, tilted the paper to make a small arch bridge, and cut it in the middle with his hands: "The higher side is the ground. , the lower side is the sea, grandpa, our world has a slope, it is like a circle, it slides down to the other side of the sea, if it slides to ninety degrees, grandpa, what do you think it is... I think the sea On the other side, there must be a big hole, maybe like a big funnel, but the sea water did not fall into the big hole. This brings me to Master's previous question, why is there a force holding us... Grandpa, although I don't know the reason , but we didn't fall down because we were held strong... But why did the world become like this, the teacher must be thinking about these reasons, so he asked us... "
The world is inclined, and there is a big loophole on the other side of the sea. Qin Siyuan and Kang Xian thought about it and thought it was unbelievable, but considering the fact that the ship on the sea was indeed the last mast to disappear, it was really scary...
Jun Wu shook his head: "But Master said that we just want to have fun with these two questions. He is probably afraid to scare us, but I don't know that we have already figured it out so quickly... However, Master's third question, That's the most important thing."
Qin Siyuan was also a little interested at this time: "What did Liheng ask?"
Jun Wu stood up, walked to the small stove where water was being boiled and squatted down, and watched for a while: "Master said that physics... er, one of the most important development paths for physics is on this teapot..."
"teapot?"
"Yeah." The little boy nodded and looked back at the two grandfathers, "Master forgot, he casually mentioned to us before... Grandpa Qin, if the mouth of the teapot is blocked, we will press the lid to prevent the teapot from venting. Can you hold it?"
"The anger is always going to come out, I'm afraid I can't hold it."
"The air will push the lid open, so here is the force. If the teapot is bigger, the force will be even greater... Master taught us that as long as we use levers, gears, and other things, we can always transmit this force. Go out, as long as you can make this kind of thing, just like the master said..."
The little boy jumped up, turned his head and said with a smile: "Master once said before, he said that sometimes manpower is poor, and animal power is sometimes poor, no matter what kind of horse you have, the carriage can only run so fast at most, because no matter how powerful it is A horse is just a horse. But there are levers and gears combined, and the machine is different. A waterwheel has more strength than a horse, but the waterwheel cannot move. The first goal of grid physics is to carry the power that is easy to carry. source!"
Words such as what machine, what is easy to carry, what power source, etc. are basically Ning Yi's way of speaking. Ning Yi has been here for so long, and he has basically been integrated into this era, but when Xingzhi talks about many new things, he ignores the grammar of this era. Jun Wu has been with him for so long, so he has written down all these sayings and regarded them as a guideline for studying physical science. Since he remembered these, when Ning Yi said it, he soon understood.
"One day, I can fly to the sky..."
The little boy looked at the teapot and muttered something. After a while, the girl sitting by the small fire raised the fan and slapped him on the forehead.
"Okay, I haven't learned the math yet, so I keep thinking about it. I'm still dreaming of flying to the sky, don't die! Master scolded you a few days ago, saying it's dangerous, don't think about it any more!"
"Wow." The little boy covered his forehead, looked at his sister resentfully, and muttered, "This is my ideal..."
It's hard to say whether the ideal boy was beaten up for a while. Qin Siyuan and Kang Xian thought it was unheard of, but it was quite reasonable, about the nature of the study of things. On the other hand, they also found it absurd. The earth Wu said was a funnel-shaped inference. After a while, Qin Siyuan said slowly, "If you are on the grassland, and you see people running on horseback, it will go in the same direction in every direction. Why? If you think about it like this, isn't the earth round?"
He thought about it, then laughed: "Nonsense nonsense, but such ideas are quite interesting, hehe."
Kang Xian was also stunned for a while, then smiled: "Interesting and interesting, if it were round, what would the other side of the earth look like, wouldn't everyone fall off? Do they all live their lives upside down?"
Jun Wu was quite distressed for a while, the two laughed for a while, their expressions became strange, and then changed the topic. They are all very wise people. Although they did not understand Western logical thinking before, but People think that things are the same, and they can adapt in an instant when they give conditions and principles, and make strict inferences. For a while, I didn't dare to think about this issue.
"Just now I heard Jun Wu keep talking about us and us. It seems that besides you and Xiaopei, there are other people who are studying this physics?"
"That's fine." Jun Wu nodded, very proud, "In addition to my sister and me, there are two junior brothers in the school, and the youngest son of the Kaiping County Duke's family. I told him recently, and he also felt very good. Reason, you're going to follow me to make kites recently, oh, yes, and Conro also thinks that it's very interesting... So we set up a party a few days ago, and now there are six people. I'm the leader of the party!"
Zhou Pei slapped his brother on the head again, but he smiled and did not speak. The two old men were also a little amused for a while. The two junior brothers in his school did not talk about it for the time being. Years old, he ran behind Jun Wu on weekdays and was pulled in by him. Kang Luo was Kang Xian's youngest grandson, currently eight years old. This guy, Jun Wu, was very popular among a group of children, and he immediately pulled them in.
"It looks like this Grid Party will develop very quickly." Qin Siyuan nodded.
"My family's Xiaoqi and Xiaoxin are afraid they can't escape..." Kang Xian laughed and made a joke about the children in the family. Among his grandchildren, Kang Qi is seven years old and Kang Xin is five years old. I am afraid that I can't escape the fate of being developed into the Gewu Party...
During the jokes of the two old people, Xiao Junwu was also slightly angry, and decided not to give Kang Qikang a chance to join the Gewu Party. They were stupid anyway. He is very strict in developing party members, because every time he wants When a development person comes in, he will give a good description of the future prospects, but it will fly to the sky.
There must be a day like that...
In the summer afternoon, there is still about 800 years of history before another historical vehicle that can fly into the sky. The little prince looked back at the teapot in the courtyard, and drew a big teapot in his heart full of longing. pie.
Some things take root and sprout in silence, and they can't be shaken anymore...
At the same time, the person who threw the seeds at random had already crossed Zhenjiang by boat at this time. They originally traveled eastward from the Yangtze River by boat and stayed in Zhenjiang for a few days before setting off and descending along the Jiangnan and Henan. This area of water is busy with boats coming and going, and the current is not urgent, so it is also slow and leisurely. After passing through Danyang for a day, it will enter the boundary of Changzhou.