The efficiency of oil extraction is not too high, and the oil yield is not too high, Li Chuan can't see it, anyway, the remaining oil residue is also cheap for the horse he raised, so Li Chuan didn't dig too deep.

Compared with the fact that all machines are prepared by him, he prefers the simple oil press built by the villagers, as long as he is willing to use his brain, I believe that the future of Datang will be quite bright.

When Li Chuan left, he brought two jars of soybean oil, which were all produced by the oil mill, and the villagers did not even keep a mouthful for themselves.

Li Chuan was full of complexity, it was obvious that he made the vegetable oil to improve the lives of the people, but now it seems that the people would rather sell it for money than keep it for stir-frying.

How can this be changed? Lifestyle problems? No, they're just poor.

Sympathy rose involuntarily, Li Chuan reluctantly suppressed it, now is not the time to sympathize, there are too many poor people in Datang, he can't sympathize, or think about it, how to increase grain production is realistic.

Seriously, Li Chuan feels that Li Shimin should really thank him, look at him now regard the people of the Tang Dynasty as his responsibility, fortunately he is wearing, if the soul wears it, it will be miserable if he is dressed as a little prince, and the life of salted fish can basically wave goodbye!

Thinking of the little prince, Li Chuan trembled with excitement, this baby is really pitiful, and it makes people want to be sympathetic.

The little prince is also sympathetic to himself at this time, and he finally mustered up the courage to meet the challenge, but who can tell him why he has so many things to do and is here to play mahjong with the emperor?

God knows that he has lost more than two hundred taels of silver, and he is really not good at this thing.

The little prince's face is full of lovelessness, looking at the mahjong tiles are almost unable to distinguish the difference between nine cakes and nine strips, anyone who has played for three hours in a row, the eyes have to be spent.

"Uncle Huang, I'm hungry, let's get something to eat." Also staying up at the card table is Li Zhiyu, who was not sent to school, he is over eighteen years old, and he was also crowned king, as long as he is honest in this life and doesn't die, he can live a good life, besides, as Li Yuan's nephew, learning too well is even more detrimental to him, and it is quite happy to eat and wait for death.

But he really didn't expect that one day he would be caught playing mahjong with Li Yuan's uncle.

Is mahjong fun? It's fun, but if you play it for too long, he'll get tired.

I stuffed two pieces of dim sum at noon, and my stomach was already empty.

Hearing what the uncle said to the other family, Li Chengqian's eyes lit up, he was already hungry, but he just didn't dare to say it.

In the past, when his father had not yet ascended the throne, Li Chengqian remembered that the emperor's grandfather was still very good to him, and every time he came to invite An, he had his favorite food, and when it was cold, he had a hand warmer and everything...... Ahem, after succeeding to the throne, his treatment plummeted, and for a while he simply turned a blind eye.

At that time, he was a little skeptical that he really didn't exist?!

Anyway, he was left out a lot, and Li Chengqian was reluctant to ask for anything, just show an attitude when he needs to be filial, and don't think too much about the rest.

"If you're hungry, let the cooks make it, and then you can eat it at a small table for each person, and you can eat it between playing cards." Li Yuan's eyes were fixed on the cards, obviously obsessed, and he didn't even want to stop for a minute.

Li Chengqian looked at the pile of silver taels piled up on the table next to Li Yuan, and he also understood why he didn't want to stop.

Li Zhiyu pursed his lower lip, looking a little uncertain, but in the end he didn't say anything, just fell silent.

Another card friend is Li Yuan's former strategist, and now he is a five-grade petty official, and he often comes to Li Yuan to set up a set of things when he has nothing to do, and naturally this person is indispensable to play mahjong.

But in front of this group of bigwigs, he has no right to speak.

Li Chengqian rubbed his neck, hoping that the queen mother would think of him by chance, and then call him over, even if it was just to ask a few words about life, it would be enough for him to escape from here.

But the expectation is only the expectation, until the kitchen is ready to eat, Li Chengqian did not wait for his salvation.

There is something to eat, where can you still take care of playing cards, in the process of eating, Li Chengqian became the king of firecrackers, not only him, even Li Zhiyu did not miss the guns, but the five-grade petty official played very cautiously, not only did not light the guns, but also won a few taels of silver.

"Go, go, what should you do, fight absent-mindedly, I might as well call my two sons." Li Yuan swept Li Chengqian and Li Zhiyu with disgust.

The two of them did not even hesitate, immediately stood up, bowed and bowed, and then withdrew.

When they went out, the two felt that even the cold air was so cute.

The five-rank petty official who was only sitting was a little at a loss, the emperor didn't let him go, where did he dare to go.

But what should he say?

Li Yuan half-squinted, as if he was thinking about something, and seeing his expression, the five-rank junior official opened his mouth and closed it again.

Now is not the time to speak.

But he didn't say anything, but he heard Li Yuan say faintly: "When people are old, are they disliked?" ”

"How so? Your Majesty, don't think so, where are you old, you are obviously young and strong, and the seventeen princes are not yet one year old......" The five-rank petty official sent a series of sycophantic words, and Li Yuan's expression eased a lot.

"Hmph, it's all a bunch of unscrupulous." Li Yuan pouted, and he passed this stubble, and then really called his two sons to continue playing mahjong.

These two unlucky sons are Li Yuanchang and Li Yuanjing.

At this moment, these two Hanhan don't know what awaits them.

It wasn't until they were forced to play all night, when Li Yuan said that he had enjoyed it and he needed to rest, that they found out that it was time for them to go to school.

At this time, Li Chuan had already gotten up early, washed up, and was ready to usher in the first class of the freshman.

Of course, the main lecture is not him, today's first class is mathematics, and the speaker is Wang Xiaotong.

This person really hasn't learned much from Li Chuan, Li Chuan has a lot of things, and it's easy to forget about him, so he can only hold the book that Li Chuan gave him and study it by himself.

This also led to Wang Xiaotong's progress in mathematics, and his ability to learn simplified Chinese characters is also unique, no worse than Xu Jingzong.

Li Chuan was thinking about whether to let him take the Chinese class in the second class.

After all, anyone can teach pinyin or something, he still teaches physics and chemistry, and he doesn't need to bring another language.

Fortunately, there is Xu Jingzong in the language, and the schedules of the two classes are interspersed, which is actually quite easy.

Seeing that the time was slowly moving towards half past seven, Li Chuan straightened his clothes and left the warm room and walked towards the classroom.

The students have almost arrived, and they will never be late for the first day of school.

There was a lot of commotion in the classroom, there was talk everywhere, basically the children of the royal family got together, and the second generation also formed two circles, one literary and one martial, and the rest of the family members were passively squeezed together.

All of them were holding cold and arrogant shelves, as if they were all dusty Tao Yuanming.

This is not enough power, come and make it up, anyway, don't let people feel that they have fallen into clichés.

"Quiet, it's time for class, go back to your place." Li Chuan appeared at the door and calmed a group of people with a loud voice.

Everyone obediently returned to their seats, their eyes staring at Li Chuan.

"Classes are officially at eight o'clock, and now I ask, which of you doesn't have a watch yet?" Li Chuan glanced around and said, "If you don't have a watch, please raise your hand." ”

No one raised their hand!

Li Chuan once sold watches for a while when there was a shortage of handicrafts, and the price was very high, but these people in front of him could still afford it.

Now it seems that every family is not bad for money, and he was thinking about whether to send it directly in the name of welfare, but it seems that he saved a fortune.

"You can look at your watch, right? Two classes in the morning, eight o'clock to nine and a half, mathematics, mathematics teacher is Wang Xiaotong, he will arrive in a while, the second class is ten to eleven o'clock, Chinese, I know you all have a foundation, the language class is not for you to learn anything else, mainly to learn simplified characters, the scope of application of simplified Chinese characters will expand in the future, there are many books waiting for you to read. Li Chuan paused for a moment and said: "I won't say anything more, study hard, the first class leader will get the writing board and send it to the students, just practice more if you have nothing to do, don't write so well with a brush, once you change it to a hard pen, it's the same as a dog planer." ”

Li Chuan was a little sad when he said this, his calligraphy was not much better than that of a dog for the time being, and he didn't make any progress even if he practiced for an hour every day.

When Li Chuan got off the podium, Wang Xiaotong also appeared at the door of the class, the two said hello, Li Chuan gave the podium to Wang Xiaotong, and he did not stay in the classroom, but left directly.

Passing by a class while leaving, he just unconsciously turned his head and glanced in, and so coincidentally saw Li Yuanchang and Li Yuanjing both playing pandas with two heavy dark circles, and the whole person seemed to have lost his mind, and he would suddenly lose consciousness in the next second.

Well, by losing consciousness we mean falling asleep, not fainting.

The first class of the first class was the Chinese class, Xu Jingzong's class, and he was looking at these two little ancestors at a glance.

Li Chuan not only posted the class schedule in front of the classroom, but also posted the class discipline, and he was punished for standing if he dozed off in class.

But does he really want to punish the two princes for their standing?

Why was it so hard for him on the first day of class?!

Xu Jingzong thought that this was the biggest test of life for him, but as soon as he turned his head, he realized that it was not, the test of life came unexpectedly, who could tell him why Li Chuan did not walk over directly, but stopped, and there was still a joke in his eyes about watching a good show?

He's so hard!

Xu Jingzong took a deep breath, knocked on the blackboard, and woke up all the students who were inattentive, "Open the book, what we are going to learn this morning is pinyin, which is very important, learn pinyin, even if you are self-taught, you will slowly learn simplified characters, and you will not know pinyin, then congratulations, the process of learning simplified characters will be thousands of times more difficult." ”

Xu Jingzong's gaze kept wandering, but he found that raising his voice and speaking did not have the effect he wanted, so he had to close his eyes and said, "Li Yuanchang, Li Yuanjing, didn't you sleep last night?" If you are sleepy, stand up and wake up. ”

In his school, Li Chuan's request is to forget his identity, and when he comes here, all the students are just students, so if he wants to hear the title of so-and-so prince here, don't even think about it.

And this rule is also acquiesced by Li Shimin.

Li Yuanchang and Li Yuanjing both stood up with wooden faces, their reactions were half a beat slower than usual, and they looked at Xu Jingzong before saying, "We really didn't sleep yesterday, anyway, can we ask for leave?" ”

"Asking for leave on the first day of class? Are you sure? Li Chuan quietly appeared at the door, and it was time for him to appear.

The two looked at Li Chuan silently, after this period of contact, they also knew Li Chuan's character, and they could play whatever they wanted in private, but when it came to business and caused him trouble, then he would throw the trouble back a hundred times.

"No, we don't ask for leave, we just talk, we listen to the class." Li Yuanjing picked up the book as he spoke, and made a serious look.

Li Yuanchang was speechless for a moment, and then followed closely.

Xu Jingzong breathed a sigh of relief, it seems that he has a good start, even the prince has to be punished for making mistakes, and see who dares to take wings in the future.

The reason why Li Chuan came forward is also here, his school must establish the authority of the teacher, and the students cannot easily challenge it, otherwise this lesson will not be taught.

In fact, Li Chuan is also a little overthinking, these ancient princes and the second generation are still different from modern bear children, for example, they know when they can be domineering with their identities, and when they have to be obedient.

The ancients attached great importance to respecting teachers, and no matter how valuable the status of students is, they must respect their teachers, which is due etiquette.

Of course, like Li You, who killed the teacher, that kid was purely rebellious and overrebellious, and he didn't have any reverence for life in his heart, and he didn't know if he was born with an antisocial personality, so he hoped to teach him well.

Li Chuan's gaze fell on Li You, who was very well-behaved, and then looked at Xu Jingzong.

Xu Jingzong suddenly felt a chill on his body, and the cold hairs on his body were about to stand up, and when he turned his head, he realized that it was Li Chuan who was doing ghosts, so he glared at him fiercely.

Li Chuan was so happy in his heart that he decided not to remind him how dangerous it was to be Li You's teacher.

In other words, if Li You really killed Xu Jingzong, would this be good or bad for Datang?!

I don't know if it's good or bad, Li Chuan only knows that time flies too fast, and in a blink of an eye, it's afternoon, which is his time for class.

In the afternoon, the first class had a calligraphy class, practicing calligraphy with a hard pen, from half past one to three o'clock, and then school was over.

In the afternoon of the second class, there were still two classes, one physics and one chemistry, both of which were Li Chuan's classes.

At first, Li Chuan was so trouble-free, but when he really stood on the podium and realized that he was going to take an afternoon of classes in a row, he felt tired.

"What is physics? It is a discipline that studies the most general laws of motion of matter and the basic structure of matter. Li Chuan held the physics book in his hand, read the definition on it, and then raised his head and said, "I know you can't understand it, it's okay, let's take our time, what are you talking about today?" Let's talk about the principle of making a fire in ice. ”

"Okay, students, get moving, put on your coats, and follow me outside to practice." Li Chuan decided to give the first class to open their eyes first, and at the same time make them realize the importance of hands-on experiments in physics.