In fact, according to the actual identity, although Liu Yu is a royal prince, he is also a famous person who entered the "Five Classics", and he is the same as Liu Jian, he is not only a scholar, but also a royal family, belonging to half and half.

He is not wrong to be on the side of the emperor, and he is not wrong to stand on the side of the scholars.

But in the end, Liu Yu still chose the Han family.

Although he has the label of a scholar, Liu Yu has been influenced by his family since he was a child, and he is still a direct descendant of Guangwu.

Looking at the entire Han Dynasty among the Han clan relatives, there are very few clan relatives like him.

In fact, although Liu Yu also knows the analysis made by Liu Jianshicai in his heart, it is really very difficult to promote learning in the world, especially in the people.

The two continued to talk deeply on this topic, and they forgot the time, even the dinner party.

Obviously, there are some aspects that the two of them have in common.

During the conversation, the two focused on several aspects.

In Liu Yu's view, there are three major difficulties to overcome to open up people's wisdom.

The first is people's food.

The basis of learning is to be well fed and clothed, and only those who have stabilized the life of the current class will have more intention to expand upwards and take a closer step.

This is also why in the late Han Dynasty, most of the people who wanted to run to the upper class were rich and poor families who did not have a scholarly heirloom!

However, because Hanmen has solved the most basic needs of life, the existing life supports them to expand their higher survival goals.

The second is the mode of transmission.

Not to mention that the main knowledge is monopolized by the wealthy families, even if the academic is not monopolized by the valve reading, if the inheritance of books is only carried out by hand, the efficiency is low and easy to make mistakes, and it is impossible to achieve a large-scale popularization of knowledge, which is a huge problem objectively.

The third is the education system.

In addition to the Taixue in Luoyang, which has a set of accurate education processes, and the five classics and fourteen doctors in Taixue are all professional teachers (Hongdu Xuemen is not counted, it can only be regarded as an art school), and the "Jingshe" and "Jinglu" in the local private schools are all founded by local celebrities in addition to studying, in order to carry forward their academic fame and expand the prestige of their own door.

Because of this purpose as a premise, the selection of private school protégés is relatively strict, including all aspects of background and economic strength are within the scope of inspection, which naturally limits the teaching crowd of local private schools.

These three major difficulties divide those who are qualified to study and study into three, six, nine and so on.

For Liu Jian and Liu Yu at present, the problems of the education system and changing the course of people's livelihood cannot be solved.

Because this requires a process of political and practical operation, and it is not surprising that these two points cannot be improved in the current situation where the forces of all parties are temporarily relatively balanced, and they must be resolved under the premise of falling apart and the world in chaos, and under the premise of controlling chaos and ruling after chaos.

After the analysis of the two brothers, Liu Yu and Liu Jian, it was found that according to their current energy and status, they may only be able to try to solve the problem of the way books are disseminated.

But how to solve it exactly?

Liu Jian proposed a key development to Liu Yu.

That's paper!

Liu Jian knew in his heart that whether it was the imperial examination, printing, or the progressive inheritance of the production revolution, it was inseparable from the carrier of paper.

It has been 70 years since the advent of Caihou paper, because it is too brittle, and it will be prone to erosion due to too much ink invasion, so it is not suitable for application.

However, Liu Yu is well-informed, he heard that in the past three or four years, a person named Zuo Bo has produced a person named Zuo Bo in Donglai County, Qingzhou, who has made a paper that is much stronger than Caihou paper with a considerable proportion of mulberry bark.

However, this kind of Zuobo paper is very particular about raw materials, and requires a large amount of mulberry as raw materials, which is quite expensive, and looks at the Han Dynasty, and has geographical limitations.

The states and counties that can plant a large number of mulberry trees for the raw material base of Zuobo paper are only Qingzhou and Yizhou, the land of silkworms.

The other is that the cost is too high.

However, many emerging industries are generally too expensive in the early stage, and only when the process develops to a certain degree of maturity, it will gradually reduce the cost because of the saving of production capacity and the expansion of raw materials, which is no way.

A new piece of technology that has just come out, you can't immediately make it the price of a cabbage.

The advent of Zuobo paper in recent years has also shown that Qingzhou's paper industry has reached a stage that can be transformed.

This is a critical time.

If local production capacity is delayed due to the prolongation of the war, it is likely to disrupt the fledgling paper industry. As for when it will be back on the right track, it depends on the right time, place and people.

Liu Jian sighed: "If the sky has eyes, there will be opportunities in the future, I must do everything possible to promote the development of the paper industry, so that this industry will not be interrupted due to other things." ”

Liu Yu didn't speak, he just frowned, as if thinking about something.

When I was young, I suddenly heard Liu Yu say slowly: "I talked with Deran for half a day today, and I benefited a lot, which really made Brother Wei feel a lot." ”

"Brother Wan doesn't have to be so polite, he didn't do anything, he just said some side gossip at will, if there are unbearable words, I hope my brother won't blame."

Liu Yu shook his head and said, "No! There are no unpleasant words, and it really benefits me a lot. ”

saw Liu Yu slowly stand up and make a long gesture towards Liu Jian.

Liu Jian was quite shocked when he saw this, and he hurriedly got up to return the salute.

Liu Yu sighed with emotion: "Over the years of our dynasty, the place has gradually become chaotic, the people's livelihood has withered, Li Shu is suffering, there are Xianbei invaders in the north, and there are Qiang people in the west who have rebelled repeatedly. ”

"In view of the disadvantages and difficulties of my court, my brother has a lot of ideas, thinking hard about how to break the situation, but for more than ten years, he is all in the study of the way of the court's power, when the country is in trouble, the local thieves will find a way to quell the chaos for Your Majesty, if there is a famine in the place, please ask Your Majesty to open a warehouse to help the grain, to prevent the plague, it can be said that it is a headache for the doctor, and the foot is a pain for the doctor."

"It wasn't until today that I suddenly realized where I should go for my brother's enthusiasm to help the Han."

"A small piece of paper carries how many blessings and benefits, and by the way, how many current political malpractices can be solved, and how many dilemmas will be solved for the Han Dynasty...... Today, I talked to the virtuous brother in detail, and I just understood. ”

"Whether it is the method of rubbing mentioned by the right talent, or the study in the world, this carrying thing is the first priority, and this paper is really the key! However, the solution to the problem of paper cannot be solved by political skills alone or the rule of the world through economics. ”

Speaking of this, he saw Liu Yu clapping his hands and said: "If there is an opportunity in the future, I will play tomorrow and go to Qingzhou in person!" ”

Liu Jian was shocked when he heard this: "What did Brother Bo'an do in Qingzhou? ”

"Listen to what the virtuous brother said, since this small piece of paper is related to my world's luck and fate, then I will do my best to find a solution! If I have no chance to go to Qingzhou the next day, I will do my best to develop the paper industry and the livelihood of the Han people! ”

Looking at Liu Yu's firm face, Liu Jian said secretly - is this the state that the legendary person who has found his goal in life should be?

Actually, if you think about it, it's true.

If Liu Yu really has the opportunity to go to Qingzhou to revitalize important fields such as mulberry hemp, paper, printing, and Haiyan, it will be much better than going to Youzhou in history to be squeezed back and forth by Yuan Shao and Gongsun Zhan.

In the late Han Dynasty among the Han clan relatives, Liu Yu is a very capable person, he has outstanding political achievements in his life, quite famous, during his governance of Youzhou, can make Youzhou a poor state greatly increase the income of salt and iron minerals, so that more than 100,000 Qing, Xu Liumin can take root in Youzhou to settle down, it shows that this person's ability to engage in economy is very set.

It's just that his ability to use troops is really weak, and he gathered more than 100,000 people to defeat Gongsun Zhan with hundreds of people, and finally died in Huangquan, wasting his good reputation and ability to develop the economy.

As for the rights and wrongs of the grievances between Liu Yu and Gongsun Zhan, Liu Jian doesn't want to evaluate too much, the governing philosophies of the two people conflict, and at the same time, they also touch each other's core interests, so it's no wonder that they don't die.

As for the means of foreign races, Liu Yu is Huairou, and Gongsun Chan is iron-blooded...... There is no right or wrong in this regard, it is all their own set of plays.

People like Liu Yu are really not suitable to go to the border counties of Youzhou, and if a place like Qingzhou, which has papermaking advantages and unlimited potential, can be governed by him, the future results may be unimaginable.

Especially Liu Yu has seen the current situation clearly, and he understands why he is in this world and what he should do.

"If Brother Bo'an has this ambition, I should help!" Liu Jian made a statement.

After half a day of deep talking, Liu Jian and Liu Yu unconsciously had a feeling of pity for each other.

……

In order to verify what the two talked about today, Liu Jian asked Liu Yu to stay in Nangong temporarily, and then sent someone to buy Caihou paper and Zuo Bo paper in Anping to study with Liu Yu.

The reason why in order to develop the paper industry, the ultimate goal is nothing more than the invention of engraving printing, so they plan to try the characteristics of existing paper in this regard.

The principle of plate printing is simple, in short, the word to be printed is engraved on the wooden board, and the comparison of each word is highlighted when engraving, and it can be copied, although it takes more time to make a set of printing plates, but after a set of printing plates is made, even if it is once and for all.

After the content of the article is arranged, one page at a time is printed on the paper with engraving, and a content that wants to copy thousands of pages and tens of thousands of pages only needs to be completed in a short time.

However, in the current situation, engraving printing is not suitable for the advent of the world, and it is easy to become the target of public criticism, and it will be collectively attacked by the valve reading and the wang family.

Only when the world is in turmoil, students from all walks of life are displaced, the academic chapters of various counties have been destroyed in large numbers because of the war, the people at home and abroad are struggling to study in peace and stability, and the situation of academic collapse can be brought out in one fell swoop.

However, it just so happens that there is no suitable paper for printing left and right, and it makes no sense to take out the engraving printing now.

Liu Jian found a carpenter, first asked people to carve a few carved wooden characters as the prototype of the engraving according to his requirements, and then experimented with Liu Yu.

They used a small brush to stain the engraving with ink, covered the Cai Hou paper, and then gently swept it behind with a brush that was not stained with ink.

Subsequently, when the paper was lifted, it was found that although the paper was stained through the Caihou paper, the ink showed signs of spreading around, and when the paper was accidentally lifted away from the engraving, it was broken because the paper was too hard.

It can't be said that it is completely impossible, but at least nine out of nine are unqualified, and even if the action is carefully printed, such paper is not conducive to preservation at all.

Subsequently, Liu Yu and Liu Jian changed the Zuo Bo paper, which had just come out in recent years, to test it.

It has to be said that the paper with mulberry bark fiber is much stronger than Cai Hou paper in terms of infection resistance and flexibility.

But the effect is still not good.

In particular, some fonts, because of the uneven ink invasion and the problem of force, the effect of the carved characters is not clear, because the ink is still a little overflowing, so the font is deformed.

Liu Jian looked at Liu Yu and said, "Brother Bo'an, have you seen it?" Paper can be used, but if you want to put it into printing, you have to strengthen the manufacturing process of paper, and you have to urge the papermakers in Qingzhou to continue to study and continuously improve the material! ”

Liu Yu nodded thoughtfully: "Good!" ”

At this moment, Liu Yu has completely understood what he is going to do.