"What's the matter?" Seeing Junxin, who had put down the phone, looking thoughtful, Gu Mengxue asked worriedly.

"It's nothing, it's just that a more respectable academic senior has written me a letter that I need to deal with as soon as possible." Jun Xin smiled and said.

"Oh!" Gu Mengxue nodded and didn't speak. After waiting for a few minutes, after the fax came, Junxin politely thanked the professor and left, and then walked in the direction of the cafeteria.

In fact, Junxin had received a lot of invitations to the community canteen at this time, and even Ars invited him to join his canteen community, but after Junxin politely refused, he still dined in the public canteen as always, so he took Gu Mengxue to the place where the public canteen was located.

"How have you been?" After ordering some food casually, the two came to a remote corner, and Junxin asked.

"I'm a little confused." Gu Mengxue sighed and said.

"How?" Junxin stopped the spoon in his hand and asked with concern.

"I'm just thinking about whether I made the wrong choice at the beginning, maybe I really don't have any talent for writing, and I always feel like my brain is blank and I can't write anything in the live writing class recently."

"It has nothing to do with whether you have a talent for writing or not!" Jun Xin thought for a moment and said.

"It's... Why? Gu Mengxue has always had a lot of trust in Junxin's words, and she always believes what Junxin says.

"You studied ancient literature in China, and there is something different from the West about the inheritance of ancient Chinese culture, which is the pursuit of inner beauty and value, and extends from inner beauty to outer beauty. However, Western culture is different, they pursue the inside, but the method of doing it is from the outside in, with the goal of expressing themselves to gain attention, and then to achieve inner self-cultivation. Kant is an example, Kant said that the most precious thing about human beings is the brilliant starry sky overhead, and the second is the deep moral pursuit. ”

Kant's words, in my opinion, are actually the pursuit of inner self-perfection, but through external forms. However, China's traditional culture is not, after all, what is paid attention to is an inside, and the style of acting is mostly inward, etc., not publicized, not exposed. ”

"It's really a collision of two cultures, and all you have to do is release yourself and don't have to suppress yourself. Because the law of competition is followed here, you have to give your advantage. Junxin finally concluded.

"Is that what you did?" Gu Mengxue nodded and asked curiously.

Jun Xin was stunned for a moment, then nodded, and said quite embarrassedly: "Actually, I am the lucky one!" That's what I did at home, but luckily I had a few gods on my head to protect me. After I went abroad, I don't worry about what Mu Xiu Yulin said, after all, this is not my home, the country is, I always have to go back, it is rare to let go once in life, let my talents go to the fullest, why suppress myself, so I have never changed, but your mentality has to change. ”

Gu Mengxue didn't speak, just nodded lightly.

After eating, Junxin sent Gu Mengxue to the dormitory, and then returned to the room, and then took out the letter from Professor Schwartz who faxed over.

"Dear Mr. Junxin,

Hello!

I'm sorry to write to you suddenly, but please allow me to introduce myself. I'm John Schwartz, from the Department of Physics at the University of Southern California, and I'm working on string theory.

I take the liberty of bothering you because I read your paper published in the September issue of Physical Review Letters, which is very rigorously argued, and it is a problem that I have been working on since 1971, when I began to work in string theory.

Although there is no strict requirement in the theory of relativity that there can be no superluminal speed, the existence of superluminal speed makes the vacuum unstable, and the instability of the vacuum will inevitably lead to the degradation and decay of the vacuum, which is not allowed. This is one of the reasons why string theory has been unacceptable.

Professor Scheker and I have been working together to solve this problem, but unfortunately it was not until last year that we found a clue to integrate supersymmetric models into string theory, so as to calculate and build new graviton models in the way of supersymmetric string theory. Sadly, however, just as we saw the light of day, Professor Scheker unfortunately passed away due to illness. The study of superstring theory was forced to come to a standstill, and I had no choice but to seek new help.

There aren't many scholars in the world who study string theory, and I need to find them all and be proficient in supersymmetry models, so it took me a long time to find Professor Michael Green at Queen Mary College of London, England, who is also a respected professor of string theory and supersymmetry.

Forgive me for not setting my sights on China, otherwise I might have discovered that your research was in line with ours, and that your research was already ahead of us.

This year, my research with Professor Green has just been completed, and I have just started research, and I have not yet researched the direction of gravity, and Professor Scheker and I have set a direction for research, and we originally planned to start research here first, but I didn't want to see your published paper at this time.

This was no less than a thunderbolt for me and Professor Green, but also a great encouragement. Because we are not alone, someone has already noticed the results of our research and has embarked on the path of studying superstring theory.

I am convinced of the significance and value of superstring theory for the development of physics, and it will be an inevitable choice for the unification of quantum mechanics and relativity. It will also become the choice of the new and final grand unification theory. This is the end result of Mr. Einstein's unified field theory. Although the direction may not be the same.

Finally, I would like to invite you to make time to visit the University of Southern California, and I hope to discuss with you the future of superstring theory and many more questions.

Yours

John Schwartz

University of Southern California, September 5, 1981. ”

Junxin put the letter on the table, habitually opened the window and looked at the sky outside, but his mind was thinking about what Professor Schwartz said in the letter.