"Cheng Qian, you are wrong. If you want to print the Analects of Confucius, you only need to use woodblock printing. The speed is definitely faster than writing." Li Yuan said.

In ancient China, although Bi Sheng invented the movable type printing technique using clay mold printing in the Northern Song Dynasty, woodblock printing was more popular in the late Qing Dynasty.

As for the reason, one is that the books printed in ancient times are more of the meanings of the Five Classics and Four Books. The content remains unchanged for thousands of years and it is easier to use carved papers. The other is that other books are not popular, and if printed in movable type, the cost is too high.

But carvings also had many flaws. By the Song Dynasty, the carvings and printing industry developed to its heyday. First, carvings were time-consuming, labor-intensive, materials-intensive, and second, a large number of book versions were inconvenient to store, and third, it was difficult to correct typos.

In the end, this is an economical account. movable type printing is definitely much more advanced than woodblock printing, but the initial cost is too high, and those clay molds are too difficult to store. If you want to print movable type, the best movable type in ancient times was made of brass.

However, the Emperor of Taishang used Western lead movable type printing this time, and the price was much cheaper than that of copper with currency attributes.

Copper, that's money.

"After that being said, even though the printing speed is much faster, the woodblock printing that will be used as a supervisor is only printing some Buddhist scriptures and has no other use." Li Chengqian frowned.

"This is Li Shimin's short-sightedness." Li Yuan laughed spontaneously.

Li Shimin always wanted to suppress the monopoly cultural rule of the aristocratic family, and implemented various measures to start rural schools, etc., but he did not find the woodblock printing technology under his nose.

Through woodblock printing, the cost of books can be greatly reduced to the point where the people can buy them. In the long run, even if the people's scholars are born weak in aristocratic families, they have a large base for the people, and the monopoly of culture will slowly disappear.

But unfortunately, Li Shimin has never noticed this. If Li Yuan hadn't reminded Li Chengqian of printing here, he would have probably not remembered that there was such a woodblock printing in the prison.

Through the reminder of the Supreme Emperor, Li Chengqian suddenly felt a light of inspiration from the sky spirit to his eyebrows, and he was enlightened and suddenly felt enlightened. He said: "How stupid I was before, a leaf was blocked, and the speed of printing books was so fast. Unfortunately... it was only used by those monks to print Buddhist scriptures. Grandpa, the emperor, waited for Chengqian for a while, and I would go to the palace to meet my father and report on this matter."

"This matter is not urgent, and this matter is not urgent for a moment." Li Yuan's mouth twitched slightly. Is this naughty child a little calm?

He changed the topic and said, "Do you remember the wedding gift that Grandpa Huang promised to give you a month ago?"

"Chengqian... Remember, didn't I just give it to you yesterday?" Li Chengqian said quietly.

"That's just a big deal. The real gift is this thing. It is the treasure that will make you truly... stable as the crown prince." Li Yuan whispered.

"It?" Li Chengqian was stunned.

"Yes, your qualifications are stupid, far less than your two younger brothers. Ke'er released Chang'an and has been inseparable from the throne since then. But for him, he is lucky that he doesn't have to worry about the open and secret arrows in the court from now on. However, Qingque is not as honest and cute as he looks. It is absolutely ulterior motive to set up a literary museum..." Li Yuan said in a deep voice.

"I... have a dull qualification..." Li Chengqian was speechless.

No matter how you look at this sentence, the Emperor is scolding him, but after thinking about it, he is really worse than his two younger brothers.

"Qingque has always been gentle. How could he have a disagreement with the position of crown prince? How could I say that I am his elder brother..." Li Chengqian retorted, but the more he spoke, the less he voiced.

"You must not have the intention to harm others, and you must be careful of others." Li Yuan emphasized.

He watched the three princes grow up and knew their personalities very well. Although the relationship was quite harmonious, he might have a brotherly relationship.

But... With Li Shimin's lesson, no matter how stable a person is, he will have an idea in his heart, and he may have the chance to touch that position.

This is true. The three princes in history each shine in order to squeeze Li Chengqian out of the position of crown prince. However, the natural flaws of King Wu Li Ke of Wu were insulated from the throne, and at the same time, they were excluded because they were too outstanding. They were eventually framed and killed by Changsun Wuji on the charge of rebellion...

As for King Li Tai of Wei, he was about to ascend the throne after thinking for a long time, but unexpectedly he made a mistake in one step...

In the 17th year of Zhenguan, Prince Li Chengqian was deposed. Li Tai took the opportunity to act spoiled with his father, claiming that he would kill his son in a hundred years and pass the throne to his younger brother Li Zhi. When Li Shimin saw Qingque throwing into his arms, he immediately felt weak. When he heard this promise, he immediately promised to make him the crown prince.

However, such a lie was exposed mercilessly by Chu Suiliang. Emperor Taizong of Tang calmed down and understood that killing his son and brother could not happen at all. So in order to ensure that his three beloved sons could survive at the same time, he decisively appointed Li Zhi as the crown prince.

The throne of Li Zhi... is as easy as picking it up.

The Supreme Emperor understood that it was time for Li Chengqian to face this cruel fact. King Li Tai of Wei was definitely not as honest and friendly as he appeared on the surface and had no intention.

Of course, Li Yuan also had his own plans. Li Ke, who had no choice but to be the throne, was placed on the frontier by three princes. If he really had talent, it would be his luck, but this possibility was very small. But no matter what, Li Ke could at least control an army, and would not be easily framed by Changsun Wuji like history and could not die helplessly. At the same time, the position of this army was controlled by his students and had a certain degree of control.

The remaining two princes, Crown Prince Li Chengqian, have always been close to him, and dared to draw the sword for him, Changsun Wuji, so as to stabilize his position as crown prince, and Li Tai, the King of Wei, wanted to break his ambitions and make him understand that he should not covet the throne!

Wait until he has accumulated enough strength and ascends the throne again, and enfeoffs the kings in the four barbarians like the Zhou royal family...

"Chengqian... understands a little." Li Chengqian lowered his head, looking a little unpleasant, but suddenly he raised his head again and smiled: "The wolves are surrounded by prey, all thinking of swallowing it, but if... this prey has sharp minions and powerful and tall body..."

"That's a tiger!" Li Yuan couldn't bear to remind him.

"Yes! The tiger roars and walks alone in the forest, not only for deterrence, but also for protection!"

"guard?"

The Supreme Emperor did not expect Li Chengqian to say such childish words. The battle for the throne has always been to the death. How could he be kind? But he felt a little comforted. Li Chengqian was still a kind-hearted child after all.

But in the next sentence, the corners of his mouth, which was smiling, completely frozen...
Chapter completed!