This approach should not be difficult to understand. Normally, we get supplies outside the region, mainly through trade. Guo Kang said: "For example, the Venetians, the output of their own city is actually not enough to support themselves, and the acquisition of living materials is done through commerce. ”

"But as we said earlier, nomadic areas are much more barren than other regions. The people here were already short of supplies, and there was nothing of value to trade. The farming area also has its own breeding industry, and cattle, sheep and animal products are not necessities, but on the contrary, the agricultural products and workshop products in the farming area are irreplaceable for the pastoral area. ”

"What's more, both the Republic of Venice and the Golden Horde in the time of the Bekhan controlled important transportation hubs and trade routes—something that Mobei didn't have at all."

"So herein lies the contradiction. In fact, this should not be difficult to understand: for example, if you urgently need supplies, but you don't have money, what can you do in this situation? ”

"Then you have to not pay." Dehuan said.

"You see, it's not going to bother him at all." Guo Kang said.

"......" The Zhu brothers and sisters were silent for a while.

"In short, I think this problem is unsolvable." Guo Kang continued: "It has nothing to do with what era or ethnic group, nor does it have anything to do with moral character or religious beliefs. In this environment, people can only maintain this state of life. That's the first question I said, what is nomadism. ”

Knowing this conclusion, we can also determine the follow-up problem. Nomads are not a fixed group, but a general term for people who use a way of life. This is why, since the Zhou Dynasty, everyone has been fighting with the northern nomads, but it seems that the fight will never be finished. ”

"There is no clear boundary between nomadic areas and farming areas, and most of our historical records are stories from the perspective of the Central Plains, so the impression is always that nomads are constantly trying to enter the Central Plains, but in fact, there may be more in the other direction." Guo Kang pointed to the area around Mo Nan and Hetao on the map: "The people of the Central Plains are actually constantly entering the grassland, and the scale is larger than the former, and the time is longer than the former. ”

"And that kind of statement?" Zhu Wenkui raised his interest.

"Historical Records" said that the ancestors of the Xiongnu were the descendants of the Xia Dynasty. Xia Wei's concubine gave birth to a son, Chunwei, who was expelled by the Shang Dynasty and fled to the north, after which the Xiongnu tribe gradually formed. Guo Kang introduced: "This may just be a legend chasing after the wind and shadows, or a story made up by the Huns in order to pull relations, but behind the story, there is a phenomenon that has been happening since ancient times." ”

"Actually, there's another thing, I don't know if you've noticed." He thought about it for a while and gave another example: "During the Qin and Han dynasties, the people of the Dayue clan first lived in Hexi. It is said that at that time, the people there were all high-nosed and deep-eyed Hu people, more like the Persians today. But over time, the Otsuki clan and other tribes have been driven to the west, and now they are all people like the Central Plains. ”

"It's the same on the prairie. The Wusun people of the Han Dynasty, according to records, looked like 'blue-eyed and red-bearded, like monkeys'. Think about it, what is this characteristic? ”

"Isn't this the Celtics?" Theodora was quite surprised, and couldn't help but ask, "But this parable ...... You're really welcome. ”

"Don't be so surprised." The queen glanced at her and said, "It is not a strange thing that many barbarians have colorful hair. ”

"I'm just a little surprised, they ran so far, they all went to the east." Theodora explained.

"It's possible that they are indeed similar ethnic groups. But it wasn't that they went to the East, but that these people came from the East in the first place. Guo Kang corrected: "When the Yellow Emperor was in the time of the Yellow Emperor, their hometown was in the north of Beihai, and then they went all the way to the south and west, and they ran everywhere. ”

"Really?" Theodora was not convinced: "Where did you see this?" ”

"Back then, I followed a group of knowledgeable Confucianists." Guo Kang casually made an excuse: "It's too unpopular, it's normal for you to not know." ”

"Then why did they go so far, across most continents, to Gaul and Britain, but not to the nearest south?" Theodora asked, "They have all been to the Western Regions, why have they never heard of these people appearing in the Central Plains?" ”

"Because Seris at that time was governed by some wise rulers known as the 'Holy King.'" Guo Kang prevaricated solemnly: "The Holy King is very benevolent, these barbarians are ashamed of themselves, and they are not worthy of being the Holy Prince and the people." Therefore, not only did they not dare to go to the Central Plains, but they did not even dare to continue to stay in their hometown, only thinking that the farther away from here the better, so that it became the territory of the Orientals. It can be seen how great the virtues of the holy king are, and how noble the merits are. ”

"......," Theodora was speechless.

"I believe that this is the knowledge that the Great Confucianism taught him." Jeanne smiled: "Speak in the same tone as Mr. Huang." ”

"It's okay, you don't have to worry, he's not all right." Tuhuan comforted: "Brother, I happen to know about this. The Celts did have a heading east. ”

"Huh?" Theodora looked even less convinced: "Where did you learn it?" ”

"It's written in the book, I thought you had read it before." Tuhuan said: "During the Three Kingdoms, Sun Quan of Wu was a purple-red beard and blue-green eyes. Apparently also a Celtic. ”

“？？？” Theodora looked dazed.

"Haven't you seen 'Gallic Wars'?" Tuhuan reminded: "The Celts beat us Romans, often coming from hundreds of thousands of people, and then they couldn't beat them and left. This Sun Quan often took 100,000 soldiers, and then he couldn't defeat and left. ”

"I think he played the Central Plains in a similar way to the Celtic against us. We Romans are about the same as the Central Plains, so Sun Quan must indeed be a Celtic. ”

At this moment, even Guo Kang was dumbfounded. There was silence again.