After Li Qing's painting, the Tang Dynasty Junchen understood the importance of developing science and technology, and jointly expressed their full support for Li Qing.

Wei Zheng's last trace of worry was also in his stomach, he thought that Li Shimin would go to the road of cultivating immortals under the "bewitchment" of immortals, but he did not expect to embark on the road of rejuvenating the country through science and technology.

This is the immortal...... Wei Zheng's eyes moistened.

In contrast, those alchemists who could only shake their lips and puff their tongues to make alchemy indiscriminately should really be pressed into the blood water one by one and drowned.

In the end, Li Qing reluctantly spent nearly 10,000 emotional points to buy a series of basic supplies such as textbooks and drawings suitable for Datang, in short, ...... Regret is not enough, the pain is real.

It's really getting farther and farther away from Big House.

Li Qing felt pain in his flesh when he thought about it, it hurt, it hurt too much.

No, I have to find something to make up for it, do you want to find a place to pull Brother Li's blood pressure again?

After the ministers left, Li Shimin's mood still did not calm down, he sat on the dragon bed and looked at the door, his eyes were deep.

"What do you want, Brother Li?" Li Qing stretched out his hand and shook it in front of his eyes.

Li Shimin came back to his senses at this time, and he said with a smile: "Brother Wei is thinking, if my Datang also has such technology, then the four seas will be peaceful, and the health of all the people will no longer be difficult!" ”

"Let's start from scratch, one step at a time." Li Qing took out two cans of ice cola and handed one to Li Shimin, "Since there are only the two of us left now, let's talk about something sensitive?" ”

"Sensitive?" Li Shimin was stunned for a moment, and immediately showed a smile that all men understand, "Could it be that Brother Cheng is not satisfied with a Shangguan Wan'er?" It's okay, I'll pick up some good looks for you for my brother. ”

"What are you talking about, Brother Li." Li Qing was blushed, he waved his hand, and said to Li Shimin: "I just want to talk to you about the reason for the demise of the Tang Dynasty." ”

"Please give me advice."

Li Shimin sat upright when he heard this, and his expression was also upright.

"The fundamental reasons for the demise of the Tang Dynasty actually have the following fundamental factors." Li Qing sharply defined, "including but not limited to land annexation, population explosion, omission of the system, and corruption of officials, the above reasons are the main factors for the corruption of the land equalization system." The decay of the Juntian system and the financial pressure completely led to the collapse of the government military system. ”

The government military system was born in the period of the Northern and Southern Dynasties and was used until the Tang Dynasty. If we talk about the government and military system, we will inevitably be unable to avoid the uniform land system and the regulation of rents.

The so-called equalization system, in layman's terms, means that the imperial court allocates ownerless land to small farmers according to the size of the population, and the land ownership belongs to the state. Small peasants cultivated state land, paid taxes to the state, and undertook a certain amount of conscription and military service.

After the land has been cultivated for a certain number of years, for example, if the farmer dies, the land will be taken back by the state.

The regulation of rents is mainly based on the collection of grain, cloth, and service. It is based on the Juntian system, a supplement to the low tax in ancient times - the so-called low tax does not mean that his tax is low, but that the tax received by the imperial court is not enough to make up for it from here.

And all users of the equalization system, no matter how much land your family allocates, must pay taxes to the court according to the number of people, and obey the conscription.

Taking the Tang Dynasty as an example, the military system of the government set up upper, middle, and lower levels throughout the country, with 1,200 people in the upper government, 1,000 people in the middle government, and 800 people in the lower government.

This group of people, who were usually peasants, conducted military training during the slack period. In wartime, you are a soldier, but you need to prepare your own weapons and equipment.

The government military system chicken thief does not spend money on raising soldiers in the imperial court, not to mention saving military spending, there are soldiers everywhere, and it can also be used as a production labor force, so the government military system is a military system that integrates soldiers and farmers.

This system may not be superior to other military systems, but it is extremely suitable for the Junda system.

As the emperor of the Tang Dynasty, Li Shimin naturally understood the relationship between the Juntian system and the government military system. The corruption of the Juntian system means that the basic guarantee for the existence of the government soldier system has been destroyed, and the government soldiers have lost the foundation of their survival, and this system will inevitably collapse.

"You said how miserable the government soldiers were, they went to fight in the army, and they went away for years, even decades, and when they came home, they saw that the land was gone, the house was gone, and the daughter-in-law had remarried...... If you continue to do this, you will fight for the court for free, and you will have to equip your own weapons, so you can only change to a rent-free tune, what kind of life will I play with you. ”

"So as a result, the common people would rather harm themselves than become government soldiers."

Li Qing's voice was not loud, but it made Li Shimin fall into deep thought.

"In order to improve this situation, your great-grandson Tang Xuanzong decided to change from the government military system to the conscription system, but he was too troublesome and more picky, first of all, he refused to go to Qingzhang Tianmu to collect taxes strictly, and secondly, he didn't want to pay for raising soldiers."

"So he chose a seemingly good method - not to give money, but to give you policies, the army to give you the temperance envoys, the tasks to you clearly, the territory for you to demarcate well, and even let you make money independently, and give you the power to pay taxes, tuntian, and sell salt."

In his opinion, using local taxes to support the soldiers and horses of the feudal town eliminates the consumption of transportation, and the Jiedu envoy only needs to raise the soldiers for him, what is this called? This is called the trilemma. ”

In this way, the famous "Ten Degrees of Tianbao" was created. And what evil consequences will be produced after the birth of this freak who has grasped the military, government and finance, I don't need to say it, presumably Brother Li, you also know. ”

Li Shimin frowned, isn't such a freak actually equivalent to a warlord in the melee at the end of the Sui Dynasty? The difference is only that these knots make them nominally obey the orders of the imperial court. It's good that the control of the imperial court is strong, but if it gets out of control, the consequences will be unimaginable.

"It is true that in the early days of the establishment of the Jiedu Envoy, the advanced system of conscription greatly improved the quality of the soldiers and injected strong combat effectiveness into the Tang Empire, but the consequences are also obvious, as the imperial court's finances gradually tightened, the feudal towns were also spread throughout the country, and when Tang Zhaozong and several major Jiedu envoys exhausted all the Shence troops, the Tang Empire was finally destroyed."

"And the root cause of all this is the intensification of land annexation." Li Qing sighed lightly, "The problem is not all Tang Xuanzong, it can be said that if it were not for this method that he came up with with with a pat on his head, your Tang Dynasty may not be able to survive for more than 200 years, maybe after a certain peasant uprising, it will be drowned in the dust of history." ”

When Li Shimin heard this, he stretched out his hands and pressed them on Li Qing's two wrists, and there seemed to be flames burning in his eyes.

"Brother Xian! Since you can tell me the crux of the matter, there must be a way to teach me! Please also ask the virtuous brother to give me advice and save me Datang! ”

————————

Routine: Ask for follow-up! Thank you, good brothers!