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Zheng Xiwen practically rushed into his office and quickly wrote down all the symbols in the formula in his mind, relying on his memory.

It must be said that Qiao Yu's explanation was quite useful.

Although he still didn't quite understand the meaning of these formulas, at least he could read the symbols and knew roughly what they represented.

For example, what belongs to modal projection operators, modal connections, traces, norms, etc.

For a moment, Zheng Xiwen even felt like he was being completely outdone by mathematics at his age.

If he had memorized so many math formulas when he was in high school, he might have gotten into top universities like Tsinghua and Peking University. Unfortunately, life doesn't offer "what ifs".

Zheng Xiwen breathed a sigh of relief after writing down all the more than ten formulas on paper and checking them carefully twice to make sure they were exactly the same as he remembered them.

The reason he doesn't use a computer is that he only remembers the appearance of many mathematical symbols and has no idea how to type them out using an input method.

Fortunately, those who undertake important security tasks also have high requirements for memory. So Lao Zheng's memory is actually not bad. At least even if Qiao Yu really smashed all those formulas, he now has a copy.

However, Zheng Xiwen did not stop there. Instead, he recorded Qiao Yu's explanations as much as possible from his memory.

While theoretically these formulas are sufficient, these explanations would likely help even the most advanced learners understand them more quickly.

Otherwise, if Qiao Yu really doesn't explain it to the public, he thinks it would be quite difficult for mathematicians to understand these formulas.

Having been by Qiao Yu's side for so long, he had seen this kind of situation many times.

It can only be said that the gap between mathematicians is also very large.

This is actually just like taking math classes when you're a kid. The teacher has explained a problem in great detail many times, but when it's tested, even if the problem is presented differently, some students still won't be able to solve it.

After doing all this, Zheng Xiwen returned to Qiao Yu's office.

He also glanced at Qiao Yu's desk and, sure enough, the draft paper that had just been filled with formulas was gone. The shredder next to it was already filled with fresh shredded paper.

"You've written it all down?" Qiao Yu leaned back in her chair, rubbing her temples, and asked casually.

"I've memorized all the formulas. I don't remember all of your explanations," Zheng Xiwen answered honestly.

"Haha, actually you just need to memorize the formulas. Most mathematical theorems can be expressed using mathematical expressions, without needing any other words."

Because the essence of mathematical theorems is to state the relationships between mathematical objects, mathematical language is inherently powerful and universally applicable; the explanations are merely to make those meanings easier for learners to understand.

However, when you distribute this information, remember to indicate that all mathematical symbols in the formula should be understood through the axiomatic system of generalized modalities.

Qiao Yu casually explained some basic concepts to Zheng Xiwen.

He no longer had the initial excitement of wanting to announce his solution to a mathematical problem to the world.

Even the joy derived from solving difficult problems has become increasingly rare. Sometimes Qiao Yu himself reflects on this, but unfortunately, he has never truly regarded mathematics as a lifelong pursuit, even though many people hope that he would.

"By the way, what did you come to see me about?" Qiao Yu asked after saying that.

Generally speaking, Zheng Xiwen wouldn't bother Qiao Yu unless there was an emergency, or there was news about the matter Qiao Yu had previously entrusted to him.

This time will obviously be no exception.

"Richard and his family, along with the film crew, have arrived in Beijing. They are currently staying at a hotel near the Space City."

According to the schedule, Richard and his eldest son will begin their training at the China Astronaut Research and Training Center the day after tomorrow.

You said before that they would let you know when they arrived in China. Let's see when you plan to meet with them.

Zheng Xiwen began to report.

Upon hearing this, Qiao Yu immediately perked up and asked, "Do I have anything special planned for me tomorrow?"

Zheng Xiwen thought for a moment, then said honestly, "Nothing should have happened."

Being a smart person, Qiao Yu immediately understood Zheng Xiwen's meaning. So he said enthusiastically, "Then don't go around spouting those formulas today. Let's wait until I meet Richard and Thomas tomorrow. I want to give them a good lesson."

Zheng Xiwen nodded, readily agreeing. It was clear that class with these two wasn't about discussing math...

Young people often have an inexplicable confidence in areas they are not good at.

"Then tomorrow morning from nine to eleven o'clock, is two hours enough?"

Qiao Yu shook his head and said, "Let's wait until midnight. I'll treat them to a meal then."

Zheng Xiwen nodded silently.

Since it was the first time Qiao Yu was interested in giving a lesson that lasted more than three hours, he had to support him.

After all, he wasn't this enthusiastic even when teaching many students. He truly embodies the tradition that a mentor can only guide you through the door; the rest is up to you to cultivate yourself.

Zheng Xiwen still remembers what Qiao Yu said when they first met their first batch of doctoral students.

"Students, you need to think about why both Master's and Doctoral degrees end with 'graduate'? It's because you embarked on this path for research."

Research is actually a very personal thing. In our mathematics community, there's a tradition that professors and students don't need to meet that many times.

Meeting once when choosing a topic and once when finishing the project is sufficient. The process in between requires your thought and research…”

Then Qiao Yu was called over by Elder Yuan and severely scolded, and then Tian Yanzhen lectured him for a long time before he finally behaved himself.

Thinking about all this, Zheng Xiwen could only sigh.

When he was looking at Qiao Yu's information, there was a section where he was playing video games with a group of contestants in the hotel while participating in the International Mathematical Olympiad...

At the time, I found it unbelievable. But back then, it just seemed so typical of Qiao Yu.

The randomness of genes makes this world inherently unfair; some people will succeed no matter what they do, even things they're not particularly interested in.

“Alright, let’s inform them like that. I need to get ready too,” Qiao Yu said enthusiastically.

……

The first day was equally exciting for Richard and his family.

Although the flight of more than ten hours is tiring, there is a car to pick you up and drop you off throughout the journey, so it is not necessarily that hard.

The three children, in particular, were extremely curious about everything outside the car window, as it was their first time traveling abroad.

With the time difference, the plane landed in Beijing at around 2 a.m.

After settling into the hotel, the whole family woke up after only a few hours of sleep. After enjoying the hotel breakfast, we strolled around the area with the staff. The hotel is located right next to the China Astronaut Center. The wide and clean Beiqing Road is right outside, and it's not far from the famous Yuanmingyuan Park, Tsinghua University, and Yanbei University.

Of course, this "not far" is based on the size of Beijing. After all, they're all in the same district.

"Look, this is the real China! Now we can be sure that we have indeed been deceived all along."

Walking down the street, watching the morning rush hour traffic, Richard remarked to his wife.

"It's so quiet here! So many cars, yet so quiet! It's amazing!" his wife chimed in.

Well, actually, no Chinese person would find the streets quiet during the morning rush hour.

But for these outsiders, the absence of frequent horn blares and the roar of large-displacement car engines already made it quite peaceful.

Especially due to factors such as license plate restrictions, the popularity of electric vehicles in Beijing is much higher than in other cities.

In addition, the area is a no-honking zone, which greatly shocked the foreigners who had just arrived.

"That's fantastic! By the way, can we go and see Tsinghua or Yanbei University? I heard from my teacher that the campuses of Tsinghua and Yanbei are very beautiful."

Thomas suggested.

“Of course.” The receptionist, who was in charge of the family’s affairs in China, immediately agreed to the suggestion and then looked at Richard, the head of the family.

Is this place far from Tsinghua University or Peking University?

Richard asked a question.

"It's not far. If we arrange a car now, it will take about fifty minutes to get to Huaqing and Yanbei. Besides, the two schools are right next to each other."

"If it's convenient, then go and take a look!" Richard looked at Thomas with doting eyes; this child was his hope.

After seeing the capital of China, he hoped even more that his eldest son could come to study abroad.

……

Huaqing University has a very large campus.

Although it's summer vacation, the campus isn't exactly deserted.

The large playground next to Zijing Apartments was still bustling with activity. People were playing soccer, tennis, basketball...

The two-story teaching building, nestled among the greenery, showcases the history of this university. Meanwhile, the newly constructed high-rise buildings exude a modern feel.

Thomas fell in love with the place after just a quick look around.

"Actually, Yanbei University is more beautiful, with Weiming Lake and Boya Pagoda. Huaqing University is just so-so. Especially Huaqing Pool, which you all saw earlier, it's basically just a small puddle."

If Tsinghua University were better than Yanbei University, Academician Qiao Yu wouldn't have primarily stayed at Yanbei University.

It was obvious that the receptionist was most likely a graduate of Yanbei University. He offered a somewhat unbiased comment on Xiqiu Road next to Qiuzhai.

Just as Thomas was about to ask about Qiao Yu, the receptionist's phone suddenly rang.

After exchanging a few words in Chinese, which they couldn't understand, the receptionist hung up the phone and looked at Richard and Thomas with a delighted expression, saying, "Great news! The company just informed me that Academician Qiao has decided to meet you at his office at the Yanbei International Mathematical Research Center tomorrow morning at nine o'clock. You're really lucky!"

"Oh my god, really? That's great!" Thomas exclaimed excitedly first.

"In that case, we won't go to Yanbei University today. It's almost noon, let's go have lunch first, and you can visit Yanbei University in the afternoon after you meet with Academician Qiao tomorrow. Why don't you go back and get some rest today?"

The receptionist suggested.

“Good suggestion!” Richard nodded quickly.

To be honest, he had long wanted to meet that amazing young Chinese man!

……

The next morning at nine o'clock, Richard and Thomas entered Qiao Yu's office on time, led by a staff member.

To be honest, this trip wasn't easy. After entering the International Center for Mathematical Research, they went through three security checks, the latter two of which involved body searches.

But Richard and Thomas weren't particularly dissatisfied, because the Chinese staff accompanying them received the same treatment.

Moreover, the receptionist was just waiting for them in the lounge inside the building and couldn't actually meet Qiao Yu.

Moreover, Qiao Yu's attitude upon meeting him made him feel as if he were bathed in a spring breeze, which swept away any slight displeasure he might have felt.

"Mr. John, and you're Thomas, right? Welcome to China. Sorry, was the security check a bit strict when entering this building? Well, they received word that there are quite a few people around the world who don't want me to live too happily. I apologize for any offense!"

Without the slightest bit of reserve, she actually came to greet him after bringing her son into the office, and was very considerate of his feelings, even apologizing, leaving Richard John speechless for a moment.

Thomas, who was standing next to him, was quick-witted and immediately said, "No, that's right, Professor Qiao Yu. Our teacher said that your brain is the world's treasure! It should be protected."

"Haha, your teacher just likes to exaggerate. Actually, I also like the concept of freedom and equality in your culture."

Qiao Yu laughed and reached out to pat Thomas's head.

Neither Richard nor Thomas expected that the great scientist, whom they had assumed would be aloof and unapproachable, would be so down-to-earth.

After confirming yesterday that they would meet Qiao Yu today, Richard and Thomas specifically looked up Qiao Yu's personality on Google.

To be honest, the online descriptions of Qiao Yu's personality are quite negative. Many mathematicians have also offered their own perspectives.

For example, she is arrogant and eccentric, and doesn't like to talk to people. Many people send emails to Qiao Yu's publicly available email address, but only receive cold, mechanical replies...

This made both of them quite nervous before they arrived.

But this has once again proven that most online statements are unreliable.

For a great scientist to be so approachable to ordinary people like them, if that's considered having a strange temper, then all the professors in the West must be weirdos!
As for the so-called freedom and equality...

A middle-aged man who has experienced the harsh realities of life would never believe such nonsense meant to fool a fool.

So-called freedom and equality are nothing more than freedom under the conditions permitted by those big shots, and ordinary people equally enjoying the troubles brought about by soaring prices and soaring unemployment.

As for the rich, it's quite regrettable that their wealth tends to increase even faster than that of ordinary people, until the point where ordinary people can no longer afford to live comfortably.

"Alright, sit down, sit down. By the way, you guys like coffee, right? Yesterday I specially had someone buy a new coffee machine, and the seller even gave me some supposedly the best imported Italian coffee. How about trying a cup?"

"Thank you, Professor Qiao!" Richard was truly flattered. He suddenly felt incredibly undeserving of such treatment from Academician Qiao Yu, who had specially prepared a coffee machine for them. (End of Chapter)