Traveling through history leaving a name

Chapter 9 Talent
After Zhang Qingfeng returned to the Taihang Mountains, he continued to teach and farm. After being beaten by Cao Cao once, he would no longer rush forward to serve others shamelessly.

However, although Zhang Qingfeng suffered under Cao Cao, his student Du Fu ushered in an opportunity.

"Mr. Xun Yu, this is the person who invented the double-entry bookkeeping method. His name is Du Fu."

In Cao Jun's office, Jiao Touch introduced Du Fu to Xun Yu with a flattering face.

Xun Yu was Cao Cao's number one adviser, and it was he who recommended Guo Jia to Cao Cao.

After Cao Cao accepted Jiao Chu's surrender, as Cao Cao's internal affairs manager, Xun Yu found that Jiao Touch's logistics was well-managed when he counted the logistics supplies, and the ledger for recording the allocation of materials was a kind of clear at a glance Record method.

Immediately, he couldn't help becoming curious, and after questioning, he learned that it was invented by a man named Du Fu, which is why the current scene happened.

"Du Fu, you invented this double-entry bookkeeping method?" Xun Yu asked Du Fu.

Hearing Xun Yu's question, Du Fu was a little nervous. He shook his head and said, "Sir, I did not invent it. It is an accounting method given to me by my teacher."

"Who is your teacher?" Xun Yu asked.

"Returning to my lord, I don't know the origin of my teacher. I only know that he came to our village suddenly ten years ago. Later, when the teacher accepted students, I became a student of the teacher." Du Fu answered honestly.

"Oh, I heard that you not only know astronomy and geography, but also water conservancy, so do you know why the water in the big river has become turbid?" Xun Yu asked Du Fu, Jiao Touch boasted about Du Fu in front of him, and he also Think carefully about Du Fu.

"Returning to your lord, this is because the people on both sides of the river wantonly cut down trees, causing serious soil erosion on both sides, and a large amount of sediment was carried into the river, which made the river turbid." Du Fu replied.

The big river they talked about was the Yellow River in later generations. During the Han Dynasty, the Yellow River was not called the Yellow River, but was called Dahe or Jiuhe.

"Then how do you think the river should be governed? Make the river clear?" Xun Yu asked Du Fu.

Unlike Guo Jia, Guo Jia was equivalent to a military staff officer under Cao Cao, while Xun Yu was in charge of internal affairs, and he paid more attention to non-military aspects.

"My lord, I think that people on both sides of the Yellow River should be prohibited from cutting trees to reclaim fields, and they should also send people to plant trees on both sides of the river. As long as these two points are done, the water of the river will gradually become clear." Du Fu replied.

"That's a very strange idea." Xun Yu nodded, then changed the subject and asked, "I heard that you are very good at arithmetic?"

"I can't say he's very good, but he can answer common arithmetic problems," Du Fu said.

"Oh? Then I'm going to test you. I have a math question here. Come and do it for me." Xun Yu handed Du Fu a piece of paper with a math problem written on it.

Du Fu took the paper, looked at the question, and found that it was a question about taxation.

[Yixian County has 34 acres of farmland, which is divided into upper, middle and lower fields. Upper farmland has 16 acres, and middle farmland has [-] acres.

The annual tax for the upper field is six bushels per mu, the middle field is five bushels, and the lower field is four bushels.Question: How much tax can Yixian County collect in a year? 】

Seeing this question, Du Fu thought it was very simple, it was just a common addition, subtraction, multiplication and division, nothing more than a bigger number.

"My lord, can I borrow a brush and ink?" Du Fu asked Xun Yu.

"Yes." Xun Yu nodded, and asked someone to prepare a pen, ink, paper and inkstone.

Soon, the pen, ink, paper and inkstone were ready. Du Fu picked up the pen and began to check the calculation on a blank straw paper.

In less than 2 minutes, the answer came out.

"My lord, the tax collection in Yi County should be 170 dou, and another 17 shi." Du Fu said to Xun Yu.

"Yes, you were right."

Hearing Du Fu's answer, Xun Yu nodded, but when he saw Du Fu's checking paper, he couldn't help asking: "What are these?"

It turned out that when Du Fu was checking his calculations, he used Arabic numerals to write them, but Xun Yu didn't recognize them at all.

But since Du Fu calculated the answer correctly, it means that this is a very useful thing.

What surprised him was that Du Fu could figure out the answer in just a moment. According to his thinking, it would take at least a quarter of an hour to solve this problem. (A quarter of an hour is about 15 minutes)
At least if he calculates by himself, it will take this time, because the number above is too big.

"My lord, this is the multiplication formula. These are all numbers. This is one, this is two, and this is five." Du Fu explained.

"Oh, tell me how this is calculated." Xun Yu was aroused by Du Fu's Arabic numerals.

Jiao Touch at the side watched the two of them enter a state of ecstasy, and he couldn't understand what they wrote, so he seemed restless at the side.

"General Jiao, go back if you have nothing to do. I'll take this Du Fu, and let him work with me in the future." Seeing that Jiao Touch was fidgeting, Xun Yu said to him.

"Since Mr. Xun fell in love with Du Fu, I asked him to stay, and I will take my leave." Jiao Chu bowed his hands to Xun Yu and left.

After Jiao Touch left, Du Fu began to explain to Xun Yu the formulas and algorithms of Arabic numerals and addition, subtraction, multiplication and division.

Xun Yu himself knew how to do arithmetic. Under Du Fu's explanation, he quickly learned this set of numbers and algorithms.

"This is really a good thing. Counting things in this way can save a lot of time." After learning the formula algorithm, Xun Yu was very happy.

Later, Xun Yu tried Du Fu's other talents.

He found that Du Fu was very insightful about history, mathematics, geography, agronomy, water conservancy and so on.

There is knowledge such as physics and natural science that even Xun Yu himself does not understand.

He also found that Du Fu was also very insightful in governing the region, but he was not going to let him go down as a magistrate, but was going to stay by his side to do things.

"Sir, in fact, my juniors are very talented. They know almost everything I know."

After a few days of getting along, after Du Fu got to know Xun Yu well, he couldn't help recommending his juniors to Xun Yu.

"Oh? I happen to be short of people here. If they are really as talented as you said, I wouldn't mind recommending them to become soldiers and officials." Xun Yu said to Du Fu.

Du Fu has followed him these days, and he found that Du Fu can handle everything he arranges in an orderly manner, and he is a rare talent.

If it's true what Du Fu said, his juniors are very talented, and he doesn't mind helping them.

On Du Fu's recommendation, Xun Yu received Li Bai, Wang Wei and more than a dozen of Du Fu's juniors.

After some investigation, Xun Yu found that although these people were younger, they were indeed very talented.

So, he decided to help them.

He recommended Li Bai and the others to Cao Cao, and arranged them to be officials in the local area. He could also take this opportunity to exercise them.

If these people can make achievements, it means that they are really talented.

At the same time, Xun Yu still had an idea in his mind, if these people were really talented, then the teacher who taught this group of people must be an even more extraordinary talent.

As long as Du Fu and Li Bai can make achievements, he can recommend Du Fu and their teachers to Cao Cao to become officials.

In the past few years, as Cao Cao's territory has grown, Cao Cao has too few officials, most of whom are former officials. Most of these officials are mediocre or even unqualified.

Therefore, Cao Cao attaches great importance to talents.

At present, in Cao Cao's forces, the front needs excellent generals to expand the territory, the DPRK needs the brains with good strategies and ingenuity to strategize, and the rear also needs good ministers and capable officials to consolidate the country.

A few years later, Cao Cao would issue three orders seeking talents in succession, which shows that he attaches great importance to talents.

(End of this chapter)