No matter what she was joking about before class, Gu Nan still had a strict teacher's demeanor in class, at least she always thought so.

"It's a convention today, you should know what to do, right?"

As she spoke, she took out a roll of paper from the small cloth bag on her back, this cloth bag was made for her by Lingqi, and accepting her as a disciple was at least the most correct decision she had made in the past fifty years.

"Of course I know." Cao Ang sat at the table, seized the time to read a few more pages of the book in his hand, and had the momentum of becoming a benevolent person if he didn't succeed.

At this time of the month, it is time for Gu Nan to teach the exam, and his and Cao Pi's results will be sent to Cao Cao. He is the eldest brother, unless his grades are much better than Cao Pi, otherwise he will not be able to escape.

Today, I knew that I was going to take the school exam, and I was already sitting here and reviewing all morning.

Gu Nan raised his eyebrows and lowered the scroll, looked at the three of them sitting on the desk and hurrying to read, sat down leisurely, took out a square piece of wood from the cloth bag, held it in his hand and carved it in a blank grid.

If you look closely, you can see that Gu Nan seems to be carving a word, originally with her swordsmanship, it is a matter of blink of an eye to carve a word on a piece of wood. But she carved very slowly, and seemed to be very attentive.

The three of them were not surprised by Gu Nan's actions, and they had seen Gu Nan carving wood for several months.

If it is usual, the small courtyard is usually the sound of talking and asking, but on the day of the school exam, there is only the sound of rustling pens.

The maids waiting outside the courtyard will not disturb at this time, of course, they will always pass by the gate of the courtyard "unintentionally" and look into the courtyard, as for who is looking, I don't know.

Cao Pi put down his pen while thinking hard, what Gu Nan taught was completely different from what he had learned before, but every time he learned something, he seemed to understand and see more clearly the truth between heaven and earth.

It is different from any truth in the books and texts handed down from ancient times, but it always makes him faintly feel that this will be a kind of truth to measure heaven and earth, and everything has traces to follow.

In fact, if you look at it from the perspective of later generations, all the things Gu Nan handed over to them were actually the most basic mathematics and science, and of course, they did not let go of language.

She was trying to do it with the trio, trying to find a way that would suit the year, to prepare her for what she was going to do in the future.

If you want a world that will never fight, as long as there are still people, it is almost impossible. Where there is Antai, there is turmoil, and where there is division, there is unity, which has been the case since ancient times. It is said to be the destiny of heaven, but it is the trend of the times.

She'll do her best, maybe she can't stop it, but she can at least do something to make it less distracting. This matter is not hers alone, but countless people.

It's easy to say, but it's just a matter of asking people to read. Sensible is not barbaric. The world is not chaotic.

It is difficult to say, but it is also the most difficult thing, because to do this, it needs to be written into tens of millions of books and taught by the people of the world.

It takes countless hours.

However, the last thing she lacks is time.

Moreover, Gu Nan held the wooden square in his hand and looked at the three people in front of him.

Since there are years that I don't know how many, don't go in vain.

It's good to be a teacher······

While thinking, he looked at the three students and smiled softly, and smiled gently.

The three of them all felt that Gu Nan seemed to be looking at them, raised their heads, and saw that Gu Nan was looking at them and chuckled, and for a while they were at a loss to avoid their gaze and continue to bow their heads for the exam.

Time passed slowly, and when the sun rose overhead, it was exactly noon, and the three of them finished the roll and handed it in.

"Hmm." Gu Nan looked at the rolls of the three of them.

Suddenly smiled and said to Cao Pi, who was sorting out the pen and ink.

"Zihuan, you are a man, you should be more powerful in writing."

Cao Pi listened, followed Gu Nan's line of sight and looked at his own scroll, Cao Pi's writing was indeed not ugly, but there was always a feeling of feminine beauty and even softness. Writing is not powerful and beautiful, but Cao Pi is indeed too light.

This has always been where Cao Ang laughed at him, and Gu Nan mentioned it for the first time, but it still made Cao Pi's face a little embarrassed.

"You see, Lingqi's handwriting is deeper than yours." Gu Nan pointed to Lingqi's scroll and said.

Can I compare her strength?

Cao Pi rolled his eyes, he didn't treat Lingqi as a woman. Of course, he wouldn't say this, otherwise he was afraid that Lingqi would cut him with a sword.

"What does it mean to be powerful, Mr. said?" He's still hard-mouthed.

"Zihuan should have heard of it." Gu Nan took the roll and said, "Settle into the wood for three points." ”

Cao Pi was stunned for a moment, he hadn't heard of the word three points into the wood, but in fact, Gu Nan didn't think it through. Three points into the wood is to say that Wang Xizhi, at this time Wang Xizhi has not been born.

Penetrating.

Not hearing it didn't affect Cao Pi's understanding of the word, and glanced at his mouth.

"Sir said with a smile, how can anyone in this world write for three points?"

Obviously, he felt that the term had little credibility.

"Zihuan, this is a meaning, not a real reference, Mr. explained your shortcomings, you should accept them with an open mind."

Cao Ang heard Cao Pi's words on the side, frowned and reminded that he also knew that his younger brother had a hard mouth, and he still had the appearance of a big brother when he should.

But when his words fell, Gu Nan smiled meaningfully and asked Cao Pi.

"And what if anyone could?"

"Then make a bet and half the money." Cao Pi stretched out a finger, he knew that this Mr. Gu always liked to bet, and he heard that she had already won four or five copper coins from her father and those uncles in this way.

But he didn't think he was going to lose today.

This kid, so well, since you sent it to the door······

didn't say much, in Cao Pi's confident eyes, Gu Nan beckoned: "Zihuan, can you lend me your pen?" ”

I didn't know why, but Cao Pi still handed the pen in his hand that hadn't been wiped dry to Gu Nan.

Cao Ang and Lingqi also looked at it.

I saw Gu Nan "gently" put the pen on the table.

"Click." There was a crisp sound on the table.

Cao Ang's and Cao Pi's brows jumped at the same time.

"Goo." It's a drooling sound.

The brush walked over the wooden tabletop, and everywhere it passed, no more, no less, just didn't score three points on the tabletop.

It was just a few breaths of time, and the brush left four words on the table, three points into the wood.

In fact, in history, the meaning of the handwriting penetrated into the wood for three points.

But when it came to Gu Nan, it was much simpler and more straightforward, and she directly pressed the desktop.

The master is really amazing, Lingqi looked at the four words on the table, she was not frightened, her eyes were full of longing.

And Cao Pi stood stunned in place, with a skeptical expression on his face.

Gu Nan turned the pen with a smile and said with a tap on his forehead.

"I've seen it, practice hard, and let people send the money to my house."

put down the pen, and left leisurely with his hands behind his back, without the guilt of even cheating the child's money, the Cao family is a big family.

Cao Pi looked at the table and was silent for a long time, then turned his head to look at Cao Ang who was standing behind him.

Half a penny, his monthly money is only one hanging, if he gives it to Gu Nan, he won't want to live well this month.

Cao Ang was numb in the back when Cao Pi saw it, twitched the corners of his mouth, and looked to the side.

"Don't look at me, I don't have any money left this month, you can make your own bets and figure it out by yourself."

Didn't he tell Cao Pi that he had lost thirty yuan to Gu Nan the day before yesterday, and now he is saving it.

······

That night, Cao Cao finished all his official duties and passed by the side courtyard tiredly.

When he saw a table in the courtyard that had not yet been put away, he went up and looked at it.

Then he stared at the table blankly for a long time, until he woke up, stroked his palms and laughed: "Good words, it can really be said to be three points." ”

"Someone! Take it off and put it up, and hang it in my room. ”

Then I thought of something in high spirits.

Well, you should also let Zi Xuan and Zi Huan take a look at them and learn the strength in this word.

Until much later, Cao Cao thought that these four words were carved with a knife.