There is no ambition without indifference, and there is no far-reaching ambition without tranquility.

Li Changqing made a grand wish to continue his studies for the sake of the saints, and after a long time in the mountains, his self-cultivation became more and more profound, and the fame and fortune in the world were like clouds of smoke for him, and he was able to look at it in the face of Ding Shaoyuan and others' praise.

Ding Shaoyuan, as the dean of the School of Mathematics, came to listen to Li Changqing's first lecture just to make a scene, but he did not see Li Changqing proposing a new optimization proof method for Fermat's theorem.

Looking at the background of Li Changqing's departure, Ding Shaoyuan suddenly thought of the confidential document he received some time ago, the Chinese Academy of Sciences is sending experts in the field of number theory from all Chinese colleges and universities to fully cooperate with a major research of the Institute of Physics, although he is only the dean of the mathematics department of a third-rate university, he is well-known in the field of number theory, and his fellow brother Tian Guangwen is currently serving as the dean of the School of Mathematics of Mizuki University. He is also the executive director of the Chinese Mathematical Association, and is also one of the main leaders of the number theory research group of this research project, so he has also undertaken some relatively simple topics in the selected list, but the core problems are still not solved!

After Li Changqing proved Fermat's theorem with a new optimization method just now, he seemed to think of a candidate who could be recommended to his senior brother, but the stakes were very high, and he would not rashly disclose information related to the project of the Institute of Physics to Li Changqing without Tian Guangwen's permission.

After Li Changqing left, Ding Shaoyuan returned to his office, closed the door, took out the phone, and dialed Tian Guangwen's phone number.

In a computer room of the School of Mathematics of Mizuki University, Tian Guangwen is instructing several young teachers to use the method of number theory to test the feasibility of a certain set of data on the computer, but in the end it shows that the data do not match, and he is very sensitive to numbers, but he has not remembered the number of tests.

"Hey, it's failed again! Shaoyuan, what's the matter?"

Dozens of seconds after the phone rang, Tian Guangwen reacted, and looked at the caller ID and said weakly.

"Senior brother, you don't have a clue yet?"

Ding Shaoyuan could hear the tiredness in Tian Guangwen's voice through the phone, and at the same time firmly recommended Li Changqing's idea.

"The data given by the Institute of Physics seems simple, but in fact it can deduce countless possibilities, and not finding the right way to crack it is tantamount to looking for a needle in the sea, even if you use a galaxy computer!"

Li Bingren, director of the Institute of Mathematics, is relatively old, and his health has not been good recently, and Tian Guangwen only served as deputy director of the Institute of Mathematics three months ago, and he encountered a big problem, and the research topics of the Institute of Physics are of great importance to the whole of China, and the burden that falls on him is heavier than Mount Tai.

"Senior brother, I recommend someone to you!"

Ding Shaoyuan knew something about the project of the Institute of Physics, and could imagine Tian Guangwen's current situation, and said softly with relief.

"Regardless of the grade level, I basically use all the people who have made achievements in the field of number theory, but they can do some basic auxiliary work, and they still can't help with the core problems, thank you for your kindness!"

Tian Guangwen is an authority in the field of Chinese number theory, and if he can't solve it, what is the use of having more people?

"Hehe, senior brother, you're talking about me! Although I really can't help with the core problem, but the people in your Institute of Mathematics can't do it, and maybe everyone else can't do it!"

Ding Shaoyuan and Tian Guangwen have been friends for decades, and they have fewer worries when talking to each other, and said to Tian Guangwen teasingly.

"Shao Yuan, if you have something, you can just say it! I'm still busy here, if I can really help, I will personally invite you to Wen'an next time to dinner! If there is nothing else, I will hang up, I will try a few more times, maybe I will touch it!"

Tian Guangwen could hear what Ding Shaoyuan said, but in his heart, the team composed of the research institute of the Institute of Mathematics and the teachers of Mizuki University should be the pinnacle of China, and he did not have much hope for the person recommended by Ding Shaoyuan.

"Speaking of this person, senior brother, you have also heard of it!", Ding Shaoyuan said without hurrying or slowing.

"Who?"

"Li Changqing!"

"Li Changqing, who proved Goldbach's conjecture!"

Tian Guangwen's eyes lit up, saying that the manuscript that Li Changqing sent to the Institute of Mathematics was still handed over to Li Bingren for review, and after it was published, it had a huge impact on the international mathematical community, and the Mathematical Association originally planned to award him the Hua Luogeng Mathematics Award, but Director Li Bingren personally went to the mountains to invite Li Changqing, and what surprised people was that Li Changqing actually refused, and even said that the green mountains and green waters, melons, fruits and vegetables were his Hua Luogeng Awards.

He also applied to the school and sent a letter of appointment to Li Changqing, but Li Changqing went to a third-rate college, and then he was busy with the project of the Institute of Physics, so he had no time to pay attention to Li Changqing's dynamics.

"Although Li Changqing proved Goldbach's conjecture, I heard Director Li say that he is only in his twenties, and I am afraid that his accumulation is insufficient!"

The key to proving a mathematical problem lies in the idea, as long as the idea is right, it is much easier to prove, Tian Guangwen has also seen some examples of college students proving a mathematical problem, but it does not mean that if a mathematical problem is solved, the mathematical foundation is stronger than the teacher who taught him, so Tian Guangwen calmed down after thinking about it for a while, Li Changqing can prove Goldbach's conjecture, and may not be able to help him solve the problem in front of him, and the project of the Institute of Physics is very confidential, and it will take a certain risk to let Li Changqing join, and he hesitated in his heart.

"Senior brother, I'll send you an email, you can take a look!"

Ding Shaoyuan didn't say much, turned on the computer and copied Li Changqing's process of proving Fermat's theorem into an email and sent it to Tian Guangwen.

"Fermat's theorem, Andrew Wiles proved it thirty years ago!", Tian Guangwen glanced at it.

"Keep looking!", Ding Shaoyuan said calmly.

"Hmm, Shaoyuan, you have proved Fermat's theorem in a new way, and it is much better than Andrew Wiles's method, if this is sent out, it is estimated that it will cause a sensation!"

Tian Guangwen looked at it and found that something was wrong, and said to Tian Guangwen in surprise.

"It's not me, it's Li Changqing!"

"It's him again! Tell me what's going on?"

Ding Shaoyuan told Tian Guangwen how Li Changqing came to the school to teach the students and proved Fermat's theorem.

Tian Guangwen hung up the phone and fell into deep thought, if it is luck to prove Goldbach's conjecture, then what about proving Fermat's theorem with an optimized method?

Li Changqing has already returned to Zhong Nanshan, sometimes reading medical books, sometimes putting various herbs into the medicine jar, studying how to treat Zhang Jiaye's disease, and busy with his own business in the green mountains, as if everything that happens in the outside world has nothing to do with him.