Before the stool was hot, the man who seemed to be asleep woke up, and the man who was sitting hurriedly stood up, and made a gesture with both hands to help the other, but said in his mouth, "Lie down a little longer." The old man blinked, the wrinkles stacked together at the corners of his mouth during sleep rose, and he stretched out a hand from the blanket and said, "Jianyu is here, I haven't seen you for a long time." Tang Jianyu held the teacher's hand and coaxed, "I was wrong, now that I have returned to China, I will definitely come to see you often in the future." ”

Du Lao's eyes moved, and he saw a book on the decomposer factor algorithm that he had published in his early years on the coffee table, and said, "You can't read this book now." Tang Jianyu shook his head, "No one is as deep as you, how many of us dare to touch Goldbach because of your enlightenment." Du Lao pursed his lips, stretched out his hand and said, "Hey, that's Mr. Chen's achievement!" Help me up and sit down, why is there no one at home? Tang Jianyu returned, "My sister and my eldest brother's family went to move furniture, and I happened to be arranged to watch the door as soon as I came." Du Lao's mouth pursed into a circle and nodded, "It's a set of Su's tables and chairs that I want, which has a sense of structure." ”

The two talked about Tang Jianyu's recent research topics, and then talked about the Paris École Supérieure and the mathematician who had never met before, "You can invite him to come to China to have a look, I really want to learn from you." Tang Jianyu pursed his lips and smiled: "I try my best to try it, but he has been taking the laboratory with him, and he can't get away from designing and modeling for some enterprises." Du Lao raised his eyebrows, "I can't take care of the results of my own project, but I can still take care of the laboratory?" I'm afraid that if I have enough money, I will run faster than anyone else. The old man has a high pedantic temperament, Tang Jianyu is very familiar with it, and he didn't answer.

Tang Jianyu hesitated for a moment, but still clarified the other purpose of coming this time, "Teacher, I want to talk to you about a graduate student you brought later, Xiao Qin." Du Lao Yi showed an awkward look on his face when he heard this, "What's wrong with him?" Tang Jianyu briefly talked about meeting the other party in the Provincial Mathematics Association, "He has a corollary in his hand, saying that he will show it to me, and then sign it together." I looked, it's what you were doing before you got sick. Du Lao exhaled, "Is it the one based on Mr. Qiu's Calabi conjecture?" Tang Jianyu nodded heavily, "Yes." Du Lao waved his hand, "I gave it to him." ”

"Then, this person is professional, has a good character, and can cooperate?" Tang Jianyu's words were quite inducing, "I haven't exchanged opinions with him about the article, and he said that there are some things that cannot be proven." Du Lao shook his hand, "Don't associate with him." In fact, I have already discussed this subject to the final stage, and at the beginning he seemed to be very difficult, and after tackling the fortification, he had to pretend to others, and he could not carve it. Tang Jianyu pursed his lips, "Senior Brother Zhang Kun said, you cherish this graduate student very much." ”

The corners of Du Lao's mouth were pulled down to the limit, and he finally understood that this beloved apprentice was here to be a peacemaker for his former senior brother. "There are fewer and fewer people willing to do pure math now, and I cherish every student. Don't I cherish you, don't I cherish Zhang Kun? Later, they all came to anger me! Tang Jianyu pursed his lips, "We also love you, that's why Senior Brother will investigate him, just don't want you to be more uncomfortable after you put in your efforts." Du Lao spread his hands, "If this is the case, he Zhang Kun will be the first to fight!" ”

After Tang Jianyu mentioned Zhang Kun, he finally saw the love in the old man's eyes again, and hurriedly struck while the iron was hot, "Then you have to be in front of you to get it!" Du Lao replied stupidly, "He is a big boss, how can he have time to come to me." After a pause, both the teacher and the student burst into laughter. This Xiao Qin came to you under my banner, right? Du Lao said solemnly, "Don't pay attention to him, this kid is a little smart, but he is not upright, mathematics is rigid, and people who are not upright can't do mathematics." Tang Jianyu just wanted to use Xiao Qin as the key to untie the knot between Zhang Kun and Du Lao, and never thought of cooperating with him.

"Great mathematician, come and help!" It was the voice of Boss Du's son, Tang Jianyu walked into the courtyard and saw a man who was not strong carrying a yellowish wooden table that looked quite heavy. The other party was red-faced, but Tang Jianyu stood on the porch with his waist crossed and watched, without any intention of helping.

"This man ran out and didn't make a move, I was about to be crushed to death!" Du Lao's eldest son held his breath and said to his wife who was carrying a stool, his wife and mother ignored him, said hello to Tang Jianyu and went back to the house, Tang Jianyu smiled at the eldest brother: "You are a student of physics, you can use mechanics to solve difficulties!" "So angry that Brother Du wanted to hit him with the table.

"Will Jianyu go out when he comes back this time?" Sister-in-law Du is a colleague of Brother Du's research institute, and no matter what she says, she has a Marie Curie-style scientific research style. Tang Jianyu put the fish sandwiched on the chopsticks in his bowl and said, "Don't go out for the time being, I have a paper in my hand to make it first." The teacher who was engaged in party building before retirement couldn't interject, so she had to open a topic that she was best at, "It's good not to go out, it's also finalized, and personal problems can no longer be delayed!" It's almost thirty-five, right? ”

Tang Jianyu's head was big when he heard it, he really couldn't hide from his mother at home, and he couldn't escape his master when he went out, why could they maintain such unremitting concern for their personal problems. "This ...... Actually, it's almost thirty-six. I guess it can only depend on fate. Tang Jianyu prevaricated, and cast a look at Brother Du for help, who knew that the other party would say, "You can't be so negative, your sister-in-law and I also decided to get married at this age, and in a blink of an eye, our daughters are in elementary school." Tang Jianyu pursed his lips and only ate without speaking.

It was already dark at night when I came out of Du's old house, and there was a section of the road with tall poplar trees. Tang Jianyu opened the window to let the refreshing night breeze blow into the car, and the full moon of the summer night was just on the side that the driver's seat could see, large and round, dyed with the unique orange red of the first rise, suspended heavily between the sturdy tree trunks, happy and quiet. The mobile phone rang twice, prompting that there was new information in the chat software, and Tang Jianyu remembered that he had promised Jin Hua to meet in his store tonight.

This meeting didn't take place until a week later, and Jin Hua ridiculed him for a while, "Tut-tut, I knew this earlier, I would have made an appointment in the future." Hurry up and ask for an assistant, I want to register! Tang Jianyu was a little ashamed, but his mouth was not relaxed, "This idea is really good, you have a wide path, help me find one." Jin Hua rolled his eyes, opened the car door, and beckoned Tang Jianyu to get into the car. Tang Jianyu pointed to the brand-new façade of the bar, "Don't let me go in and sit?" "Nothing has changed in there, let's go have tea."

The waiter opened the bamboo curtain and went out, Jin Hua held the glass, looking at the beautiful posture of the tea leaves inside, "The tongue here is very good." What black tea do you drink in the summer? Tang Jianyu raised his eyebrows, "You love tea, isn't it new." Jin Hua touched his neck and said, "Hey, in the end, I can't afford to love wine." Then put down the cup and looked at Tang Jianyu, "It's so strange, why don't you see changes?" I felt like I was having poor circulation, and my face was often swollen. "Haha."

There are many leisure people in the tea shop, watching the mountains and tasting tea, listening to the wind and sassing through the dense forest. "Shao Wenyu came the day before yesterday and sat in the position you like to sit." Jin Hua said casually, "It's almost her exclusive seat." Tang Jianyu took a sip of Qimen black tea with a nutty aftertaste, and answered flatly, "Oh, have you chatted?" How is she doing? Jin Hua rolled his eyes, "Just a few words of greeting, she has something to talk to me about, and she didn't come to the store because of you." What the hell is going on with the two of you? ”

Tang Jianyu opened his mouth, what the hell is going on with the two of them? There are things he can't say, and there are reasons why he can't say.

Seeing Tang Jianyu's speechless appearance, Jin Hua twisted half a piece of pea cake, patted the crumbs on his hand, and said, "Come on, you are different from me." "What's different?" "I don't have the stinky problem of being withdrawn, and I can marry someone else, but you can't." As soon as these words came out, Tang Jianyu's face changed, "Are you still in touch with Jiang Qian?" Jin Hua lifted his eyelids and pursed his lips, "You think too flat of me, Zhang Ye and I are both seven years old!" ”

"Who made you have an unforgettable old love in your words?" Tang Jianyu spread his hands, Jin Hua raised his eyebrows, and said lightly: "Whoever says something outside the word, I will say a word!" Tang Jianyu couldn't help laughing when he heard this. Jin Hua tapped the refreshments with a small silver fork, and suddenly his eyebrows jumped, and he asked a serious question, "Jianyu, have you come back to see Xiao Jiaojiao?" The smile really receded from Tang Jianyu's face in an instant, and he said with a sad face: "No, just through a phone call." ”

"What did you say?" Jin Hua changed his sitting posture and stretched his neck to ask. Tang Jianyu bit his lip and said sullenly, "I didn't say anything." Jin Hua was surprised: "This girl, how can she be!" Haven't you been closest to you since you were a child? Tang Jianyu didn't hear the other deep meaning in his friend's words, and sighed and said: "The small house in City B was rented to her, and she told me about the rent." I don't know if I'm thinking too much, she seems to be annoyed with me and doesn't want to talk to me anymore. ”

"That's not easy! It must be because you can leave if you want to, and you can go back if you want, which annoys the little girl! Jin Hua observed Tang Jianyu's expression and said casually. Although Tang Jianyu was sitting here, his thoughts didn't know where to float, he turned his head to look into the distance, and said distractedly: "It's not that I don't want to tell her, I really can't find a reason to contact her." He withdrew his gaze, lowered his head and said to himself, "You know she's not the child she used to be." ”

Jin Hua remembered Shi Jiaojiao's heartbroken appearance in front of her, she stood in front of the security gate and looked at herself with sad eyes, and said, "Teacher Jin, I'm finished." The sweet voice passed through the insider's brain, Jin Hua almost couldn't control himself, and told the person concerned everything that happened that day, but he couldn't help it, and Shi Jiaojiao begged him to keep his mouth shut.

"You're just hypocritical!" Jin Hua wrinkled his nose and said as plainly as possible, "It's been so many years!" Isn't Shi Jiaojiao Shi Jiaojiao when she grows up? Contact first, what more reason! Tang Jianyu only said that Jin Hua was straightforward in his heart, but he couldn't be calm, so he had to smile bitterly, as if hiding something, lowered his head and silently took a sip of tea with a suitable temperature.