Sure enough, it is an engraving, Xuan Shi vaguely remembers that the first engraving and printing book in the Tang Dynasty is the "Diamond Sutra" of Buddhism, and then it is a well-known book, and further on, some precious books are manuscripts.

In addition to those rare and unique books, most of the books on the Xuanshi Mansion are hand-copied books, after all, the hand-copied books are much cleaner than the pages printed by engraving today.

"Husband wants to print books?" Jin Yang asked.

"Well, isn't this Zhuangzi school already open, just now I looked at the bill, and found that the biggest expense in the school is nothing else, that is, this book, paper and pen and ink are not so valuable, this book is so expensive, it is expensive in this printing workmanship." Xuan Shi said.

Xuan Shi thought about it in the study, and felt that the students in the academy could not be limited to the education of Confucianism, a person's thoughts, more important than a person's knowledge, throughout the Tang Dynasty from the establishment to the decline to the extinction, it can be found that such a phenomenon can be found in the Tang Dynasty, the Tang Dynasty is rich in poets, warriors, capable ministers, art masters, Ming Jun, magnates, eunuchs, but there is no philosopher, which is obviously unsound for the development of the Tang Dynasty, and the young people of the Tang Dynasty have a very broad vision, But it is only limited to what they see and hear, but no one has ever taken the initiative to think, to think about what they have not seen, what they have not heard, and what they have never heard.

Without philosophical reflection, how long can a strong country last?

And what is the basis for the training of such so-called "philosophers"? Obviously, just the liberal arts of Confucius and Mencius cannot cultivate such talents, and what Datang needs is science.

Thunder in the sky is caused by electricity in the clouds, why does sometimes it thunder when it rains and sometimes it doesn't thunder when it rains? Because there are necessary conditions for the formation of thunder, first, the air must be very humid, and second, the clouds must be very large, and the weather is dry and the place is not prone to thunder and lightning.

Thunder is not that God is angry, it is not that God wants to punish anyone, and it is not that someone has done something immoral that causes God to be angry and resentful.

If there was science, Xuan Shi would not have to worry about the Zhuanghu Gate on the Zhuangzi being fooled by a group of fake monks who could only pretend to be gods and ghosts.

Xuan Shi thought about it, I am afraid that he will have to give full play to the skills of the copyist, copy out the 100,000 why first, and then copy something else, as for the printing matter, let the craftsmen of the engineering college go to work.

"What is the husband thinking?" Jin Yang saw Xuan Shi holding a rice bowl and holding chopsticks, but he was stunned there, and couldn't help but ask.

"I'm thinking about printing, son, you said that this engraving printing, if it is improved, how about it?" Xuan Shi smiled.

"Improvements? What strange tricks did the husband think of again? Jin Yang asked.

Xuan Shi took out his seal, printed red clay, and poked it on the paper fiercely, and the six seal scripts of Dongshan Hou Xuanshi were clearly visible.

"Son, where's your seal?" Xuan Shi asked.

The seal of Jinyang is a small seal, just a symbol, not as authoritative as the seal of the Xuan world.

Jin Yang took out the small seal from his purse and handed it to Xuan Shi, who printed Jin Yang's seal next to his name.

"How about if these two seals are written with other words, or two sentences, and they are separated and put together, they become one? Split it further, one print, one word, you need to print that sentence, pick out the words, arrange them, how about this? Xuan Shi asked.

"What does the husband mean is that all the characters are carved into a small seal on the concubine's body, or rather, it is smaller than this small seal, and when it needs to be printed, it will be arranged directly?"

Xuan Shi nodded: "That's right, you see, like this." ”

As he spoke, Xuan Shi picked up the pen and began to draw on the paper, one by one small squares, and finally a large square.

"This big square is the frame, and it's the size of a page of a book." As he spoke, he picked up a book and turned a page at random: "For example, on this page, these small squares are carved words, and you only need to arrange these small squares into the frame in the order of the book, so that you can use these words repeatedly, which one needs to be used, saving effort and money." ”

Jin Yang listened to Xuan Shi speak, and the more he listened, the more clear he became.

This method is much better than the engraving method, why is the engraving so expensive? Because a board, as long as a little careless is broken, then this board is wasted, when the craftsman is carving, there are too many boards carved waste, except for this, a board can only be used as a page of this book, used up, it is useless, and these small squares are different, stored, as long as they are not broken, they can be used forever.

"What the husband thinks is indeed a good way, in this way, not only can you save money, but also save a lot of effort." Jin Yang exclaimed: "In this case, the husband will write a letter to Chang'an and let the craftsmen of the Institute of Engineering study it." ”

"That's right, that's exactly what the husband means." Xuan Shi said with a smile: "In this way, here in the academy, we don't have to rely on books on the market at all, we can produce and sell ourselves, and this is also a craft to make money." ”

The four major inventions, papermaking, printing, compass, and gunpowder, Xuan Shi has improved three in succession, maybe after thousands of years, his name can be put together with Cai Lun.

It's all improved paper, and the one that Xuan Shi changed is better than Cai Lun's change.

Hearing Xuan Shi say this, Jin Yang covered his mouth and chuckled: "No wonder people outside say that the husband is greedy for money, if the concubine doesn't know the doorway here, just looking at the husband's superficial temperament, he also thinks that the husband is greedy for money, this is a good thing in the future, as soon as the husband says, why do you feel that you are down to grade and contaminated with copper smell." ”

"Money is a good thing, who doesn't want it, whether it's our Zhuangzi or Chang'an City outside, or the entire Guanzhong and Datang, no one should think of anyone so elegant, no matter how elegant people are, they have to eat, drink and Lazar, a penny is difficult to defeat heroes, isn't there still rumors among the people, when Yiguo Gong came out of Shandong, the poor even sold their horses and swords." Xuan Shi smiled.

"Husband, you, you can really arrange it, after arranging the father's arrangement, the emperor arranges the Yiguo Gong, and there are folk rumors that if three out of ten sentences are accurate, it is already excellent." Jin Yang said with a smile.

"What's going on....... In the future, I will have the opportunity to ask Yi Guogong if it is true, and I am also quite curious. Xuan Shi smiled.

After discussing the matter, Xuan Shi and Jin Yang obviously relaxed a lot and made jokes.