As the emperor, although Li Shimin is a father, he doesn't have much time to care about his son and daughter.

When there are too many objects, they are not precious.

However, he still likes several of his sons and daughters.

For him, coming to the queen's side can be said to be a spiritual rest, hearing that the queen was about to summon her son and daughter to inquire about the study, the emperor, who was originally leaving, stopped.

Hearing that Empress Changsun actually hired the girl she met that day to be the teacher of the prince and grandson, Li Shimin felt a little funny, but after listening to what they were studying, his expression became serious.

"She said that money is to circulate, and only through circulation can production be promoted, and so that resources are infinitely vast, people's lives can be improved?"

In Li Chengqian's presence, he naturally had the main right to speak:

"Teacher Fan gave an example and said that if he is a Datang official, he will get ten yuan a year......"

"Our salary is not copper money, but rice grain, which is calculated in stone......"

"Father, the teacher wanted to use money as an example to illustrate the importance of circulation, so he used copper coins as the unit of calculation."

"Okay, go ahead!"

"He used the money to buy rice and daily necessities, so he transferred the money to the producers of rice and daily necessities......

"It's not the merchants who make the money...... And the amount of products a person can produce is constant. ”

"When a businessman makes money, he can go to restaurants, restaurants, and even prostitutes...... As producers, farmers, blacksmiths, carpenters, bricklayers, etc., will get the money they consume, and the money they consume, they can buy what they need...... As long as the money circulates one more time, the value that can be created in a month is not necessarily 200 or 300 yuan, so only ten yuan of money can create so much value......

Therefore, Datang should control merchants, and encourage merchants to run materials, and should not restrict the use of coins, the use of cloth is too inconvenient sometimes to buy some small things, there is no way to use cloth to consume, there are certain restrictions, barter, trading is very inconvenient, will reduce the number of circulation, money is the most convenient way of circulation, when the people grow rice and grain are sold, he will be anxious to think of more rice and grain, will begin to find a way to increase production.

Teacher Fan Jingjing's view is that when there is a need, people will naturally use their brains, and society will progress.

As a result, the people will produce more and make more money, and their lives will be better, and they will be able to buy things with more money, and they will not have to make everything themselves, and they will all be made in the most humble state...... The most important thing is that the imperial court must collect commercial taxes in order to benefit from it. ”

"This is simply challenging the policy of our imperial court......"

For a while, Li Shimin's head was a little dizzy, and there was no way he couldn't figure out the truth that the prince could understand......

Empress Eldest Sun, although she listened to it next to her and didn't speak, her eyes lit up, obviously she figured it out, but this was an issue involving the policy of the imperial court, and she didn't want to tell Li Shimin.

She knew that although Li Shimin had to think about many things every day, there were always some things that he couldn't figure out for a while, but as long as he took some time, he could figure it out.

Everyone left time for Li Shimin to think about it, in fact, some princes and grandsons have not yet figured it out, and they are very curious if their great father can figure it out?

"You're going to learn this today?"

Empress Eldest Sun knew that Li Shimin needed time, so she hurriedly changed the topic.

"The teacher asked us to design a new house, and she said that her new house is not only where he lives, but also a palace for us to study in the future...... With the brain open, can people still live? ”

Li Chengqian couldn't help but wonder. The other princes and grandsons also nodded.