The only one who can sit up and walk is now only a big idler like Li Chengqian.

After discussing with the old gentlemen to invite a few gentlemen, Li Chengqian got into the carriage again and rushed back to Chang'an.

Although the road from Chang'an to the academy has been as straight as possible and paved with cement, it still takes more than an hour to go back and forth.

stepped on the night, and used the prince's token to enter Chang'an City, and was warned by the city gate official.

The curfew in Chang'an is a law that distinguishes the city from other cities. The fang market is not allowed to open at night, and if the fang officials knowingly commit crimes, they will be exiled for 3,000 miles. The circumstances are serious, and even being beheaded is not unusual. And the city gate, only the Red Feather Rush and the 100,000 Fire Rush Waist Card can be opened. Although the identity of the prince is enough to open the city gate, but after careful consideration, the city gate official still has to bear the responsibility.

After entering Chang'an City, there was no time to go to Guozijian, so Li Chengqian could only return to the East Palace and rest for one night.

The next day, Li Chengqian did not go directly to Guozijian, but prepared gifts and sent a message to visit Kong Yingda's house.

Kong Yingda needs to go to court, so it is Kong Zhiyuan, the boss of their family, who receives him.

Although Kong Zhiyuan is a professor of Guozijian, he has obviously never seen a big scene. The gift list of the East Palace made him at a loss for a while, so he could only order the kitchen to prepare the noon banquet at any cost, so as not to dissatisfy the prince.

After tasting the calligraphy and paintings in Kong Yingda's study, Kong Yingda came back. When he heard that his father had returned, Kong Zhiyuan was obviously relieved.

"His Royal Highness the Crown Prince is here, the old man is lazy, Zhiyuan, why don't you hurry up and prepare the banquet?"

Seeing Kong Zhiyuan slip away, Li Chengqian picked up a pair of words on the desk and said with a smile: "The words of Kong Sacrifice Wine are indeed called everyone." Although Lone has practiced calligraphy for a long time, he can't write this kind of charm anyway. ”

"His Royal Highness the Crown Prince is in love, although the old man's words are good, but there is no way to stand on his own no matter what. Let's not talk about this for a while, Your Highness is coming to the Humble House today, what advice do you have? ”

After meeting, he sent a fart directly, especially the title of "Kong Sacrifice Wine", which made Kong Yingda feel like a great enemy. If the expectation is good, the prince should have taken a fancy to the gentleman who didn't know about the gentleman, and was ready to come over to dig the foot of the wall.

If it was just digging on weekdays, but now Lao Kong has a breath in his heart, and he doesn't want to be taken advantage of by the prince no matter what.

You must know that after the Guozijian originally taught all the princes, after the Chongwen Pavilion was born, the only few princes and concubines of the country jumped ship, and after the construction of the academy was completed, the children of the marquis also flocked to it. As a result, the Guozi Supervisor, who originally had more than 200 students, went to the empty building, and had to recruit some of the children of the Earl and Viscount.

If this is left in the past, how can they have the qualifications to enter the country's prison!

Seeing that although Kong Yingda's face was expressionless, his beard was shaking, Li Chengqian didn't know what to do.

The matter of Chongwen Hall and the academy, I am really a little sorry for Lao Kong. Don't say that Guozijian, even the Hongwen Pavilion is very desolate now, Yao Silian went to the academy to open his own history branch, and now Chu Liang, Cai Yungong, and Xiao Deyan are left to support it.

Arching his hand, Li Chengqian could only tell the truth: "Kong Saijiu, I want to discuss with you this time, can you send a few of Mr. Arithmetic from Guozijian to the academy?" If the academy only teaches knowledge, it doesn't matter if the children of the nobles are not, and the students of the common family, if they can't get in, I'm afraid that many people will be in vain. If you add arithmetic, even if they can't become officials in the future, they will not lack a way to live. ”

Now Kong Yingda's eyes are really red, if it is not the prince who comes to the door today, I am afraid that he will really beat people out with a stick!

It's too much of a deception! Too much deception!! Isn't it enough to rob students? Now you're robbing Mr.? Why don't you merge the Guozijian into your academy!

Although he turned the river and the sea in his heart, Kong Yingda has been in the officialdom for many years, and it is no problem to maintain a smiling face.

"Your Highness, it's not that the old man doesn't allow it, it's really those gentlemen who are arithmetic, and even the old man can't instruct them. Instead of coming to the old man, His Royal Highness should go directly to their mansion and ask. As long as they wanted, the old man would naturally agree. ”

Eyes are the windows of the soul, no matter how perfect Kong Yingda is disguised, red eyes can't deceive people.

Seeing that Lao Kong was really anxious, Li Chengqian didn't know what to do now.

People are very strange creatures, and if they accumulate simple guilt for a long time, not only will they not sublimate, but they will fall apart, and even break the jar.

At this time, Li Chengqian was like this, and the establishment of the college was not only the long-cherished wish of the old gentlemen, but also his hope. Although Guozijian claims to be the highest institution of learning, the professors are all children of the nobility, and all the teachers are scriptures. As a result, the students who came out were proficient in all kinds of poetry, but once they were made officials, they would be exposed in their true form.

He Shou said at the beginning that he himself was born in the country, and after becoming a county magistrate, he found that what he had learned in the past was difficult to play a role in governance. After half a lifetime, I can be regarded as finding some ways to the position of county commander.

A more serious person like He Shou is still like this, let alone other county orders. It's no wonder that the officials who became assassins are all bearded, if it is not a thorough study of the people's livelihood, who would dare to promote them? Those who have just learned to walk will run, and it is strange that they will not bring disaster to the country and the people.

Having said that, I can't say it directly to Kong Yingda. Li Chengqian could only take out a picture from his arms and hand it to Kong Yingda and said, "Since you can't convince them, it's better to give them this picture for Gu." After reading this picture, if they are still unwilling to come to the academy, let's treat it as if they haven't been here. ”

Kong Yingda took the drawing, didn't know what it meant, opened it and looked at it, only to see a lot of inexplicable drawings drawn on the paper, and some inexplicable words.

What "let the number sought be D", what "the result is E, minus B minus B B minus four times the root of A and C, except for two times A, E takes one of them", the head of the person who looks at it hurts.

"Since Your Highness said so, the old man naturally brought the picture. It's just that if they still don't want to do it after reading it, then the old man has no choice. ”

Li Chengqian nodded, then put down the calligraphy and painting, and prepared to leave.

Kong Yingda retained, and Li Chengqian could only excuse himself by saying that there was something in the academy and he couldn't sit for a long time.

Lying on the carriage back, Li Chengqian could only sleep one nap at a time.

Last night, I picked up the pen and tried to write down the knowledge I remembered, only to find that the knowledge that I wanted to throw into the corner was presented on paper, which was simply a pain like peeling off the cocoon. Not to mention, it is necessary to convert "2a-b plus or minus 4ac under the root number b square" into written language.

When I first learned to prescribe or something, what did I learn it for? Even the junior high school student who was rumored to ask a delivery man to help with his homework did not meet it himself. After learning the binary equation, when the result really needs to be squared or bulbous, just click on the mobile phone, and the result will come out.

The paper handed over to Kong Yingda will definitely seduce those arithmetic gentlemen from Guozijian. If the ancients wanted to achieve something in arithmetic, they needed the accumulation of several generations, and occasionally one of them could be studied wholeheartedly in order to advance some. Zhao Shuang's Pythagorean square diagram is probably about to be drawn by them. The presidential certificate is a foreign product, which will be of great interest to them. Besides, although the solution of binary one-dimensional equations has been mentioned in the nine chapters of arithmetic, they must have not been able to understand it.

Scholars are all cheap people, they can ignore gold and silver, and only the temptation of learning can make them crazy.

On the second day, after Kong Yingda handed over the prince's paper to Mr. Arithmetic of the Guozijian, he really saw what madness is.

A dozen arithmetic gentlemen! All of them fell into madness, fiddling endlessly with their schemes, and the servants went up to deliver tea, but they were all kicked away. The prince's piece of paper, he couldn't understand, only these arithmetic gentlemen knew how valuable it was....

Seeing this scene, Kong Yingda couldn't help but sigh. Although the prince came to dig the foot of the wall this time, it seems that behind the digging of the foot of the wall, there is a layer of meaning of sharing knowledge with the prince of the country. Learning is priceless, and he knows it. Since everyone plans to exchange knowledge for labor, how can it be counted as the country's eunuch earned!

After calculating the pros and cons, Kong Yingda walked up to the people who were reading the words and said: "This piece of paper was given to the old man by His Royal Highness the Prince, if you want to get more, you have to go to Zhenguan Academy to teach, but Guozijian also needs you now, so I can only let you go in turn, how about it?" ”

Liu Zhengwen threw away the plan in his hand and replied, "Since the prince intends to let me wait to teach, then I should do it." Not to mention the new Pythagorean proof method, which is the solution to this quadratic equation, is a first-class knowledge. Don't say that if you ask me to wait to teach, that is, to do coolies, for the sake of learning, we are also willing! ”

Liu Zhengwen's words attracted a chorus of agreement, except for teaching arithmetic in Guozijian, they basically spent the rest of their time wandering in the ocean of calculations. Now that I find that there is a warm ocean nearby, how can I not paddle past?

Shifting to teach is acceptable, but the order of order makes these people break their heads. In the end, it can only be decided by drawing lots.

After successfully digging the corner of the Guozijian, Li Chengqian was completely idle. Mathematics naturally has its logic, and there is no need to ask for orders, as long as a so-called mathematics book is faked, they can teach it and study the truth on their own.

After he was free, Li Chengqian completely closed his mouth, only the great court meeting must be held, and the rest of the time will not go back to the court unless notified by the emperor.

Lu Kuan and Tang Jian made the etiquette in the end, except for the symbolic part of the treasury, the rest was the money from the Ministry of Internal Affairs. It was known that the Western Turks wanted not gold and silver but material craftsmen, but this time no craftsmen sent them, only silk, tea, porcelain and other harmless goods. Among them, the most valuable is a set of Mingguang armor, in fact, this is a separate protection for the leaves. In addition, a pasture near the Western Turks was also given away as a dowry.

It's not that Datang is arrogant, it's really because there is really no need to hold on to that piece of land, and after sending it out, it can shrink the defense line in the north and increase the strength of the defense by more than three percent. This was the result of strict discussions by Li Jing and other military generals. As for the land sent out, it won't take too long, and maybe you'll have to be surnamed Tang.

This pasture is the finishing touch in the dowry. For the Yehu, who urgently needs Datang to give face to maintain his status, this ranch is the most fragrant.

An official of Honglu Monastery went to the Western Turks with a dowry, and he not only had to deliver the dowry, but also to bring back the people and dowry. The most important thing is to sign an alliance with the Ye Hu to determine the friendly relations between the Tang Dynasty and the Western Turks. As for why he is the representative of Datang, there is no need to say more.

The dowry was sent away in March, and in April, Li Chengqian had to return to farming.

During the autumn harvest last year, he did not participate in the autumn harvest because of a leg injury, so it was Li Tai who replaced him, and Li Ke took Li Tai's place.

This year is different, in addition to fulfilling the duties of the crown prince, Li Chengqian also has to fulfill the duties of the vice president of Zhenguan College.

God knows what happened to those blacksmiths and carpenters, and when they were idle and had nothing to do, they really got the Quyuan plow. Originally, Li Chengqian was going to remind those craftsmen so that things like Quyuan ploughs could appear in advance, but when they were given a "holiday", they actually researched it themselves. You must know that according to the normal progress of history, Quyuan plough will not appear until the end of the Tang Dynasty.

On the day of spring ploughing, Li Chengqian deliberately brought the finished Quyuan plough to the royal field, which naturally attracted the attention of the emperor.

"What is this? Ploughing? ”

Li Shimin is not a person who does not eat minced meat, although he was still a little lazy when he farmed before, but since the locust plague, he has been personally involved in this field, and if he is busy with government affairs and has no time when pulling weeds, he has to send an idle official to replace him. It is conceivable that such behavior naturally attracted a flock of sycophants.

"Qu Yuan plough, the work of the School of Engineering of Zhenguan College, Yan Liben is not qualified to participate in the pro-cultivation ceremony, so please bring this thing over and give it to you for experimentation, so as to increase the face of the School of Engineering."

"Oh?"

Hearing Li Chengqian say this, Li Shimin immediately became interested and instructed Li Chengqian to bring the sturdy ox over and try it himself.

For this new farm tool, Sinong Siqing Yu Yue couldn't get close to it, but he came over cheekily.

When he began to plow the land, it was still the prince who held the plow, and the emperor supported the plow, and Li Shimin, who had been working for several years, really felt the beauty of this new plow.

Compared with the previous plough, the curved plough changed the straight and long wheels to curved and short wheels, and installed a plow disc that could rotate freely at the head of the wheel. In this way, not only the plow frame becomes smaller and lighter, but also when it reaches the ground, it is also convenient to turn around and turn. In the past, with an old-fashioned plough, even if his body was exercised in the military formation, he would inevitably have backache and leg pain.

In order for the emperor to be able to relax this year, the Ministry of Rites deliberately searched the customs and found this sturdy and sensible cow. Now it seems that the emperor who supported the plough did not use much force, and this healthy ox also looked like he was at ease.

"This new plough is really exquisite, Your Majesty, Weichen is courageous, please ask Your Majesty to suspend the pro-ploughing ceremony. Such a subtle new plough should be announced to the world as soon as possible! Seeing the magic of Qu Yuan plough with his own eyes, Yu Yue immediately jumped up.

Sinong Temple, as the name suggests, is the official office in charge of the world's agricultural affairs, regardless of its function for the time being, as long as the Quyuan plough is promoted, it is not just so superficial to save effort in farming. You must know that the land of the Tang Dynasty is there, and what is lacking is the people who cultivate the land, and the Quyuan plough can make the speed of cultivation go further, and it will definitely make the people of the world cultivate more land. In this way, it can definitely be called a great thing for the benefit of the country and the people. Not to mention that Sinong Temple will get credit, that is, the entire court will be praised by the people.

Li Shimin touched his chin, and when he saw Li Chengqian smiling, he asked: "Chengqian, the College of Engineering, won't you just make this pair of plows!" ”

Li Chengqian shook his head and said to the surprised Yu Yue: "Yu Siqing, the College of Engineering has made a large number of Quyuan ploughs, after all, there is also a large area around the college, which needs to be planted by the noble children of the college to follow Mr. himself. If you want a finished product, go straight to the engineering school. ”

After hearing the news he wanted most, Yu Yue didn't care about his official uniform being stained with mud, stepped on the soft ground quickly, and ran outside. The emperor couldn't help but glared at him, and he stepped on a lot of footprints.

Seeing that the eldest grandson who sowed the seeds had already followed, Li Shimin motioned to Li Chengqian to continue to lead the cow, and the father and son chatted while walking. Qu Yuan plough saved a lot of effort, and he didn't need to concentrate on his work.

"Tell me, what do you want this time? The last time I conferred the title of Yan Liben, it has already provoked criticism from the Manchu Dynasty, and it can be said that the title of Yan Liben is more about your face. Since Quyuan plough is so easy to use, there is naturally a reward, but the title is not to be discussed! ”

"Father, you are a cup bow and snake shadow, and the son didn't say that he wanted to ask you for a title."

"Come less, since you personally brought the Quyuan plough and displayed it in public, I don't know how to suffocate it. Hurry up, when this ditch comes out, I won't listen! ”

Li Chengqian looked back and saw that the land was almost there, so he hurriedly said: "Actually, it's not a big deal, Erchen just hopes that you will incorporate the gentleman of Zhenguan Academy into the official system of the imperial court." Of course, the School of Engineering cannot be excluded, and as for whether the School of Medicine should join, you have to ask Sun Daochang what he means. But I guess he's not going to accept it. ”

"Oh, I just say, so you're waiting here. It is not a big deal for Zhenguan Academy to be incorporated into the imperial court official system, but the grade I give them will not be too high, and it will generally only be a false title. ”

"That's it, in fact, this is what the old gentleman ordered. The old people in the college are not all indifferent to fame and fortune, and some of them have no way to enter the office in their early years, or their careers are unsatisfactory. There is the establishment of the imperial court, and those old gentlemen also look a little better on face. ”

Li Shimin nodded, he knew that Li Chengqian still had a layer of meaning that he didn't say. In the future, the academy will definitely attract a large number of idlers from the mountains and wilderness to join, and there is the establishment of the imperial court, so as not to end up with the imperial court not visiting sages and the like.