When Li Feng returned home from Qingyun Temple, he seized the time to write secret books. After the medical team was established, he would definitely be busy teaching every day, and he would be even less time.

When you encounter some forgotten knowledge points, just communicate with your sister Xiao Ai. Xiao Ai doesn’t need to check the information, and you can answer your brother directly. You’re just teasing: “Brother, is your chemistry also taught by the physical education teacher?”

Little girl movies, I know I’m making fun of my brother, right?

In his plan, in addition to chemical knowledge, this book also needs to mix some physical common sense, especially some view of nature and cosmic view in later generations. This should be shocking for the ancients with a low vision, right?

Although he has worked very hard, the progress is relatively slow. The main reason is that the brush he used is too weak and he wrote a word in a long time. It would be great if there was a pen!

There is no need to think about this for the time being. For him who is still poor and ungrateful, he is too arrogant. I would like to think of some simple and practical methods.

The simplest hard pen is of course to make a quill pen. Li Feng has only heard of this, but he has never seen it or made it.

Ask Xiao Ai when something is unknown - after my sister sent him the information he had sorted out, Li Feng studied it twice. With his strong hands-on ability, it should be no problem to make a quill.

Seeing Li Feng coming out of the room, Nunu immediately greeted him happily: "Brother - Nunu wants to listen to the story of the beautiful monkey and the little Nezha is in trouble!"

The little girl felt a little aggrieved: These days, my elder brother is so busy that he doesn’t tell those nice stories to Nunu.

Of course, the Monkey King is the Monkey King. Li Feng can coax children. Before going to bed, the little girl likes to listen to him tell stories the most. To coax children, Journey to the West is of course the most fun.

"Little lady, Yasha tells you." The little maid knew that Li Feng was busy with serious things, so she wanted to coax the little guy away.

Little Nunu is not easy to coax, and blinks his shiny big eyes: "Zhou Haiyasha, have you been beaten to death by Nezha's Qiankun Circle? Why are you alive again?"

Yasha made her very upset.

Looking at the little girl's aggrieved little face, Li Feng felt a little guilty. He reached out to rub her head: "Today, my elder brother will tell you a story about a seven-year-old goose. Let's talk about it while walking. After telling the story, we will catch the big white goose!"

Nunu was so happy that he slapped his face and followed his elder brother like a follower. Except for the house, the story was finished while searching for geese in the village. After teaching Nunu a few more goose poems, the little girl could recite them smoothly.

"Dalang, Dalang, yes, I'm looking for you!" Dahu ran over panting, "Dalang, pig, the pig in the family--"

"The pig is sick, don't worry, Dahu, I can treat people and I will also treat pigs." Li Feng thought his pig had pigs.

Dahu waved his hands repeatedly, and when he was breathing evenly, he said, "It's the little pigs you played by Dalang, who grow so fast every day, and they are all born piglets. Now, they are bigger than the two that have not been played. The people in the village are all about to slay their own pigs."

Just this matter, fussed. Li Feng patted his shoulder: "Dahu, haven't I taught you all, and the professional slap knife has also been created for you. You can slap pigs."

"But, I don't dare to cut the knife!" Dahu looked entangled.

Thinking about the first time I observed the operation, my legs were so scared that I felt weak. Li Feng could understand Dahu’s mood and feelings at this moment, and patted him on the shoulder: "Or, you can pass on this craft to those brave people in the village, and you can be a bricklayer first."

Dahu then felt relieved and breathed a sigh of relief. This also made Li Feng feel a little worried: I don’t know how the enrollment situation of Master Sun is like. I dare not take a minor surgery on the pig. If I replace it with an operation on someone?

After sending Dahu away, Erhu came again, and followed Erhu's father. After Li Hou greeted him, he looked a little anxious: "Dalang, Hu Shang's subordinates came to harvest yesterday. They said that imitation toothbrushes and tooth powder have appeared in Daxing City, and the price is cheaper than ours. What should we do? Otherwise, we will also reduce the price?"

Because Mu Guiying had already escorted a large number of goods back to Persia last month, it was all the staff in his store who were in charge of contacting him.

From Li Hou's hand, he also got a small bag of imitation tooth powder. After Li Feng sniffed it, the ingredients were almost the same, but the proportion was not very good, and the effect should not be as good as the original version.

This thing has no technical content, and it is a matter of time to be copied. So Li Feng didn't care too much: "It's better as usual. We started it first, and the reputation can be maintained for a while. Winter is here, and now our focus is to promote the kang to Daxing City. The most profitable thing is to do engineering!"

Well, building a kang is a project, although it is a small project.

Li Hou has also experienced the benefits of a fire kang, but the dignitaries in Daxing City are afraid that they will not recognize them. They can’t drag them to Longquan Village to experience them. It would be strange if you don’t beat them to death?

After hearing Li Hou's concerns, Li Feng smiled slightly: "It's okay, in two days, we will go to my mentor's house to do a few model projects. At that time, I'm afraid that our Longquan Village will have too few labor and will be too busy."

"That's good, that's good." Li Hou is also a little blindly admiring this young man now, and he believes in Li Feng's words. If that's the case, he will work during the day and hide in the bed to count money at night. Well, it's very beautiful, very beautiful.

When Li Hou left with hope, Erhu was so envious of Xiao Nunu's words: "White hair floats on the green water, red palms ripple clear waves": "Da Lang - you promised to teach me to read."

Who can't learn well from? You have to learn this guy Rakshasa! Li Feng waved his hands repeatedly: "I don't have time, why don't you follow me to study medicine first. After joining the medical team, you must first learn literacy in addition to teaching medicine. I just don't know if you have the courage to take a knife?"

Thinking of his brother Dahu, who was a compatriot who was a madman, and he didn't even dare to slay pigs, Li Feng was a little unconfident in Erhu.

"Dalang, as long as you can read and read, I will do it even if you use a knife to kill someone!" Erhu stared at his eyes, looking fierce, scaring the little Nunu to hide behind his elder brother.

Li Feng patted Erhu's shoulder hard: "Okay, that's it. Please help promote it in the village and see who else is willing to do it. Remember, those who are too young will not be accepted. As for now, who raises big gooses, take me to pull out a few goose feathers first!"

Erhu's body was shocked: "Dalang, you are going to make new things again. You will definitely make a lot of money this time, right?"

I guess you don’t have to think about making money. Scholars in this era must be useless; and the threshold is lower than toothbrush powder.

After getting more than a dozen goose feather feathers, Li Feng went home to make a quill pen. He tinted out one in a short while, tried it a few times, and then used it. Although he needed to dip ink after writing a few words, it was much easier to use than a brush.

If the original brush was used as an old cow pulling a cart, the current speed would be to ride a horse and run.

"Brother, you are so awesome!" Little Nunu naturally began to praise him again, but this time, someone also made a small request: "Brother, Nunu also needs to write every word."

Do you love studying so much? Of course Li Feng would not refuse, so he held Nunu's little hand and the brother and sister collaborated to write the poem he had just said to him.

Although Li Feng led the way, he still wrote in a crooked manner. I guess if Master Yu was present, he would be so angry that he would just give up the disciple.

However, Nunu felt very accomplished and happily took it to show it to his grandmother. Li Feng was also quite inspired and decided to compile a textbook for his sister, or copy a textbook for him.

The popular elementary school today is the "Thousand Character Classic" that has been born for a hundred years, which is the one that "the world is mysterious and yellow, and the universe is vast and vast". Not to mention children, it is difficult for adults who have no basic understanding.

Recalling in my mind, the first thing that came out was the "Three Character Classic" that Li Feng memorized when he was a child. As the first book of enlightenment, it is the most appropriate one.

Just recompile the allusions and characters involved after the Sui and Tang dynasties, and you can use them directly.
Chapter completed!