"So, it's versatile and the cost is low?" Li Shimin listened to the craftsman from the formula to the finished product test, and summed up these two points.

"That's right." Li Chuan nodded, pondering that it was time to burn red bricks next.

Burning red bricks is much easier than cement.

When all the materials were ready, he rebuilt his dormitory.

Thinking of the dormitory, Li Chuan especially wanted to change places to live.

Even if it's a small courtyard in Chang'an City? It's more comfortable than living in the palace.

There are people in the palace to serve, but the problem is that they are not very free, if they want to leave the palace, they have to report first, and His Majesty Li Er or the queen mother can only go out if they are approved.

As for who to report to, it all depends on what you want to go out for, if it is official business, such as he goes to train the troops, he has to report to His Majesty Li Er, if he goes out to go out, or goes out to make things like in the past two days, he will report to the queen mother.

It's a rule! Let Li Chuan feel that he is still a primary school student, where to go, he must tell his parents!

How can I get out of the palace?!

Li Chuan bit his lip and meditated, he felt that he should now make Li Shimin feel at ease, even the merit theory was pulled out, what else did he have to worry about?!

"Tomorrow we will build the road from the city gate to the Huangzhuang." Li Shimin glanced around, his eyes paused on Li Chuan, and finally fell on the little prince, "Chengqian, you are responsible." ”

"Yes, father, the son will do a good job." The little prince is full of fighting spirit.

Li Chuan recalled that time when he went out of the city to run a horse, he seemed to see that road, "Isn't that road quite flat?!" ”

Li Shimin and Li Chengqian looked at each other expressionlessly.

Li Chuan smiled dryly: "...... Haha, haha, it's just right for experiments. ”

"Li Chuan, come with me." Li Shimin walked up.

"Wait, Your Majesty, there's something else going on." Li Chuan immediately stopped, and the red brick hadn't been ordered to go down.

Finding the head of the craftsman who was not very good at walking, Li Chuan dragged him for a long time, making sure that he understood, and then ran to His Majesty Li Er.

"You're going to burn bricks?" Li Shimin is not surprised, bricks have been there for a long time, their city walls are all made of green bricks, and the Great Wall is indispensable for bricks.

"Yes, the simpler kind, the quality of green bricks can't be compared, but it's enough to build a house." Li Chuan added: "It can also be used to build a city wall, but it must be combined with cement." ”

Li Shimin groaned.

"Actually, Your Majesty can try, if you defeat the Eastern Turks, it is still good to build a fortress on that steppe, build a city wall with red bricks and cement, if there are enough manpower and materials, it will be enough in a few days."

"How many days?" Li Shimin was shocked.

"I don't know how many days it will take, but I think ten days will be enough." Li Chuan calculated, "As long as the city is not too big." ”

Li Shimin narrowed his eyes, "Then I really want to try." ”

"Your Majesty will give you a piece of land, and let the minister build a house for Your Majesty." Li Chuan is looking forward to the suggestion.

"Yiqiu Palace is at your toss." The corners of Li Shimin's mouth curled slightly, and he glanced at Li Chuan deeply.

Li Chuan almost became a pufferfish, so he couldn't toss it in such a place.

I'm in a hurry, believe it or not, he built a seven-story building?!

Li Chengqian: "......" hug his Yiqiu Palace!

The three of them walked all the way to the Chongwen Palace, Li Shimin glanced at his son, but did not chase him.

Listen to what you want, and it never hurts to learn more.

"The family problem you said ......," Li Shimin said half a sentence, leaving half a sentence.

Li Chuan smacked his tongue, "Your Majesty, is it really good to eavesdrop on people?" ”

"My board is going to rust."

Li Chuan immediately behaved well-behaved, hugged his fists and said: "Your Majesty, the family will disappear sooner or later, they are out of place." ”

At this time, Li Chengqian finally guessed what Li Chuan said to Wang Zhongze, no wonder Wang Zhongze seemed to have lost his soul.

"Tell me why they're out of place?" The corners of Li Shimin's mouth hooked, he really wanted to hear what Li Chuan could say.

"They are digging into the corners of the country to enhance their own strength, which no emperor can tolerate." Li Chuan shook his head slightly, people who can't recognize their positioning will eventually come to a dead end, "The family thinks very highly of themselves, and always thinks that they can control the world, but they don't know that in fact, with them or not, it will not affect the rising of the sun, let alone the lives of the people, maybe the people will live better without them." ”

Li Shimin listened, lowering his eyes slightly, "What you said is not right, do you know how many courtiers in the court are from the family?" ”

"This is what Your Majesty has done wrong, ordinary people can't afford to go to school, can't afford to buy books, how can they be officials? They don't even have a chance, and if they are given a chance, His Majesty will find that they are much smarter and more knowledgeable than those sons of the family. Li Chuan drew a × behind his back with his hand!

It is certain that there are smart people, but to say that they are smarter than the family is a lie, and the inheritance of people for so long is not a fake.

"It's all my fault for co-authoring?!" Li Shimin was laughed at angrily.

"It's Your Majesty's fault, the people can't eat enough, it's Your Majesty's fault, the people are illiterate, it's Your Majesty's fault, the people's safety can't be guaranteed, or Your Majesty's fault." So Your Majesty, you should honestly take the blame!

Li Chengqian clenched his teeth, for fear that he would scream.

Li Chuan really dared to say it, he didn't dare to listen to it!

Li Shimin was silent for a long time, and just when Li Chengqian felt that his father might be going crazy, he heard Li Shimin say faintly: "You are right, it is indeed my fault." ”

"Since Your Majesty knows your mistake, it's good to change it."

Li Chengqian wanted to disappear on the spot, he would not participate in the performance of these two next time, his little heart couldn't bear it.

"Tell me, what do you want me to change?" Li Shimin sat leisurely on the chair and asked casually.

"Movable type printing has reduced the cost of books, and Your Majesty should promote it." Li Chuan was saddened by his imminent loss, "We should also open schools in various places to train professional talents." ”

"Professionals?"

"Yes, for example, if the household department needs to settle accounts, then we will specialize in cultivating students who are good at mathematics." Li Chuan sorted out his thoughts for a while, and said: "Your Majesty, among the people of the Tang Dynasty, there are few really smart people after all, but there are also many people, they are only good at a certain direction, just like someone is good at mathematics, someone is good at water conservancy, and someone is good at writing splendid articles, Your Majesty, no one is omnipotent, and you can't require your courtiers to be all-powerful saints, for them, as long as they have the ability to do their own work." ”

"For example, stingy people, Your Majesty can arrange them in the department responsible for rewarding foreign ministers or foreign envoys, so that they can give full play to their stingy nature, so that they can save a lot of money, of course, as long as Your Majesty is not poor and generous."

Li Shimin and Li Chengqian: "......" (@_@; )