Wenyi immediately took out the binary equation to suppress this little fat man who didn't know the height of the sky, Li Tai saw that the new knowledge was like a cat smelling fishy, and in a blink of an eye, he looked like a good baby, and he almost squatted on the ground and wagged his tail.

Literature and art also liked this genius little fat man very much, so he summoned the eldest disciple with a letter. Let Shi be responsible for teaching Li Chengqian and Li Ke, and teach Li Tai himself.

After two months of observation, it was found that the third brother's personality was more or less proud, which was estimated to be a common problem for the children of the aristocracy.

The effect is still a little bit, but these problems are all developed from a young age, and it is difficult to change them, and literature and art have been thinking hard for several days and finally decided to do a big ticket! Under the pretext that his mother was by his side, he was not able to use real means to discipline his brother, and fooled the eldest grandson and Concubine Yang back to Chang'an. Princess Pingyang lives in a villa in the town, and occasionally goes for a walk in the town, but she only asks her brother a few things about studying. Hua Mulan came to raise the baby, and Wenyi invited more than a dozen midwives from Xiao Mansion to take care of Mulan. Shu'er just made an excuse and got it.

Everything is ready, Wenyi called the three brothers up early in the morning, threw each of them a set of coarse cotton clothes, and each of them a small burden, and he was also dressed in the same way. The three brothers were a little puzzled, and after a few people exchanged glances, Li Chengqian asked, "Master, what are we going to do here?" ”

Literature and Art said: "As the saying goes, 'it is better to travel thousands of miles than to read thousands of books', and I want to take you out to travel the splendid rivers and mountains of the Tang Dynasty." ”

The three brothers believed it, and immediately changed their clothes with joy, and threw the little burden to their attendants. Wenyi said at this time: "Take the burden yourself, and there will be four of us when we go out this time." Secretly, there will be a team of Xuanjia troops to protect it, but all the problems encountered need to be solved by ourselves. The guards are at my command, and you cannot command them. ”

The brothers didn't care, the literature and art teaching classes were different from those dull old men, basically there was no specific style, and several people had long been used to it.

The four of them talked and laughed and walked out of Shanghai County, Li Ke seemed to realize something and asked, "Master, where are we going?" ”

Wenyi smiled and said: "Go to Chang'an." ”

Li Ke chuckled in his heart and hurriedly asked, "How to go?" ”

Literature and art: "I'm going here like this." How else do you want to go? ”

At this time, Li Chengqian also reacted a little: "Master, won't we just walk over like this?" We can take the car back, it's so far away from Chang'an! ”

Wenyi shook his head and said, "I said that we came out to travel, how can we take a carriage." Another point to remind you is that each of you has two yuan in your baggage, which is your money all the way from here to Chang'an, and how you spend it is your business, but if you don't get to Chang'an after spending it, your assessment will be considered as failing. And after spending it, I will provide relief materials: half a steamed bun for a meal, and enough water pipes to ensure that you don't starve to death. ”

It was only the three brothers who realized that things didn't seem to be good!

Li Tai asked, "Master, which way should we go to Chang'an?" Can I ask for help if I meet an acquaintance on the road? ”

Wenyi said: "I only know that Chang'an is in the west, you can figure out how to go by yourself, of course, I will change the route at will to ensure that we will not be too easy." You can ask for help appropriately on the way, and the limit is also up to me. Okay, the three of you can discuss the next step. ”

The brothers looked at each other, not only afraid of the journey, but also an inexplicable excitement. The three little guys muttered for a while, and finally took Li Ke's suggestion to go to Hangzhou to find Xiao Mansion for a detailed map, and then discuss the specific route.

In ancient times, going out was nothing more than taking a car or hiking, and now the four people choose to hike, the first day there is a rush of excitement, walking fast, walking 50 miles a day, for five or six-year-old children, this is already the limit.

Although the four of them are now on the official road, Shanghai County is a newly built county, and there are not many vendors on the official road. A few people had to find a creek to prepare for camping. The tent or something will still be prepared, after all, these people are still children, so they can't be too demanding.

Wenyi sat on the fire and skillfully roasted the pheasants caught by Li Ke, and the three little guys sat opposite Wenyi in rows. Wenyi said: "Let's talk about your feelings today. ”

Li Chengqian took the lead and said: "Master, the disciple only feels that walking is so hard today, and the disciple has observed that there are basically no people after leaving Shanghai County, and the occasional people who pass by on the official road are all traders who go to Shanghai County. ”

Wenyi nodded and said, "Do you know how much population our Datang has now?" ”

Li Chengqian thought for a while and said, "Mr. said before, it seems that there are less than three million households in Datang at present. ”

Wenyi said: "Do you know how big the territory of the Tang Dynasty is? ”

Several people shook their heads, and Wenyi said: "At present, Datang has 5 million square kilometers of land, but the population is less than 3 million households, and the population is mostly concentrated in the north. Therefore, it is normal not to see many people, which means that the population of our Datang is too small now, and we urgently need to recuperate. ”

The three brothers nodded silently, and Li Tai said at this time: "Master, today I tried walking on the dirt road and walking on the cement road, and found that walking on the dirt road is much more tiring than walking on the cement road, is this why you insist on using cement to pave the road?" ”

Wenyi smiled and said: "You observed very carefully, the cement is smooth and hard after molding, compared with the soft dirt road, it is said to have great advantages, small friction and rainproof, the biggest disadvantage of the dirt road is that it is muddy after rain, and the cars and horses are almost impossible to drive." In my thoughts, in the future, the whole Datang will promote this kind of cement road, so that not only is it convenient for the people to travel, but also if they need to transfer troops, they will travel faster on the cement road. Roads can be said to be the lifeblood of the country, and only smooth roads can make the country run more efficiently. ”

Li Ke said: "Master, I feel that these two pieces of money are very heavy, so I thought that if I exchanged these two pieces of money for silver, it would be much more convenient for two taels of silver." ”

Literature and Art rejoiced: "This is a big subject, now copper coins, cloth, silk, silver, and gold can be used as currency, but it is extremely inconvenient to use. Think about if there's a way to make it more efficient and convenient. If you can do it, you'll go down in history! ”

Li Ke's eyes lit up and he asked urgently, "Master, do you have a plan?" Can you tell the disciples? ”

Wenyi shook his head and said: "I do have a complete monetary system, but I can't tell you yet, it's up to you to figure it out by yourself, you're still young, and when you learn the basics, I think I'll tell you." ”

Li Tai interjected at this time: "Master, do you also have a plan to promote cement roads?" ”