Li Mengmeng faced the doubts and smiled indifferently: "Ning Ning, have you heard that if you want to change this world, you must first understand this world?" ”

Liu Ning nodded: "Well, our teacher has talked about this truth. ”

"Well, let's take the atomic bomb as an example, if the scientists who developed the atomic bomb didn't understand the atoms in the microscopic world, would they make the atomic bomb out of thin air?"

Liu Ning shook his head silently.

Li Mengmeng also said: "We not only live on one planet, but also exist in a vast universe, and many mysteries about it are unknown to us. Then, our astronomers will take on the important task of human understanding of the universe, and eventually join forces with scientists in the field of astronautics to conquer the universe. Think about it, can we do without astronomers? ”

Liu Ning scratched his head and pondered again.

Li Mengmeng continued to enlighten him: "Now that your father is participating in the development of FAST, I am afraid that he will have to struggle for several years or even more than ten years for this project, and almost devote his best years to this project." Moreover, he wants to dedicate his life to the astronomical cause of his motherland. ”

Liu Ning was a little puzzled: "What is FAST?" ”

Li Mengmeng looked half-understood: "It is a kind of super astronomical telescope, which can see the universe tens of billions of light-years away, and is called the 'eye of the sky'." ”

Liu Ning's eyes lit up: "When I was young, my father took me to the observatory to see space with an astronomical telescope, which was amazing. ”

"Well, it's just an ordinary astronomical telescope, and the astronomical telescope that your father is currently involved in developing is unique in the world, and it is said to have an aperture of 500 meters."

Liu Ning was almost incredulous: "Really? Will there be such a big telescope? ”

Li Mengmeng smiled: "This is what your father's colleague told me personally, is it still fake?" After the successful development of the 'Sky Eye' that only belongs to our China, our China will have another world first. ”

Liu Ning was shocked by a conversation with Li Mengmeng: "My dad is amazing. ”

Li Mengmeng said gloomily: "If they can make such an achievement, they will have to make huge sacrifices, especially for your father, who may lose your son." ”

Liu Ning's psychology at this time was extremely contradictory: "My father may not have my son in his heart at all. I grew up so big, he never cared about me. ”

"You misunderstood him. Although he can't care for you like other people's fathers, his fatherly love for you has long been buried in his heart. Perhaps father's love cannot be as straightforward as mother's love, but is full of subtlety and depth. ”

Liu Ning's neck tilted: "Really?" Do you seem to understand men very well? ”

Li Mengmeng's cheeks were slightly feverish, but she didn't care about Liu Ning's ridicule, but was full of tolerance: "Ning Ning, I want to tell you a true story." Are you interested in listening? ”

Liu Ning was curious: "What story?" ”

"It's a story about a girl and her father."

"Oh, tell me about it."

Li Mengmeng was reserved for a moment, and then said: "There is such a girl who hates him very much because her father abandoned her mother but formed a family with another woman. She swore that she would never recognize such a father, and that she would never call him 'Daddy' again. Because, it was the father who made himself a child of a single-parent family, and let the mother live in loneliness and pain. So she depended on her mother and wanted to be her mother's good daughter..."

When Liu Ning heard this, he couldn't help but interrupt: "There are simply too many families like you are talking about, and several of my classmates are single-parent families. ”

Li Mengmeng smiled slightly wryly: "You have to be patient, you will hear different stories from those single-parent families." ”

"Okay, you move on."

Li Mengmeng then continued: "Actually, the father cares about this girl a lot, and sometimes goes to the girl's school to pick up the girl, but the girl always disdains it, and has always been cold to her father. As a result, my father always hit nails. Later, the girl gradually grew up, gradually understood the things between adults, and had a certain understanding of the divorce of her parents, but because the estrangement from her father was too deep, she still didn't want to recognize this father. ”

Liu Ning subconsciously interjected again: "If it were changed, I wouldn't recognize it." ”

Li Mengmeng glanced at him with disgust, and then continued: "The daughter's mother suddenly told her one day that her father was suffering from uremia and had to replace a relative's kidney, and the girl was his only relative. Her mother asked her if she would give her father a kidney. The girl thought about it for a long time, and finally said that she was willing to give her father a kidney, because her life was given by her father, and she was willing to repay her father's favor...

When Liu Ning heard this, he couldn't help but interject: "That girl is so stupid, since she has cut off her relationship with her father, she still has to take one of her own kidneys, why bother?" ”

Li Mengmeng stared at him dissatisfiedly: "If it were you, you wouldn't have exchanged your kidney for your father?" ”

Liu Ning shook his head resolutely: "For my father who doesn't have me in my heart at all, I won't donate my kidney for him!" ”

Li Mengmeng sighed helplessly and continued to tell the next story: "After the girl was operated on, her body was very weak and she was lying motionless on the hospital bed. At this time, her feeling was that she had repaid everything she owed to her father, and it would be easier from then on, so as not to let others say that she was not filial. At this time, her father, who had also undergone surgery, came to the ward in a wheelchair to see her. When she glanced at her father, she turned her face away angrily, not wanting to communicate with her father at all. The mother couldn't stand it anymore, and with tears in her eyes, she persuaded her daughter to say a few words to her father, but the girl was very stubborn and refused to listen to her mother's words. My father left the ward disappointed. The girl later recovered, and slowly forgot about it. After another three years, her mother suddenly and hurriedly told her that her father was too sick to die, and asked her to go to the hospital to see him for the last time. Although the girl was shocked, she thought that she no longer owed her father, so she clinged to her thoughts and could not live or die. My mother was so angry that she almost hit her..."

When Liu Ning heard this, he couldn't help but feel sorry for the girl: "Why is her mother like this?" Do you still have feelings for her ex-husband? This girl was able to donate a kidney for her unemotional father, which I am afraid other girls can't do. Why did her mother force her? ”

Li Mengmeng's eyes suddenly moistened: "Your words are also the words of the girl questioning her mother, which made her mother cry immediately, and she had to tell the girl a secret - it was not the girl's kidney that was donated to her father, but the father's kidney was donated to her daughter!" ”

"Ahh Liu Ning was dumbfounded.

Li Mengmeng burst into tears: "Girl... Hear this... Totally shocked... Only then did she understand... Before donating a kidney to my father, I often dozed off weakly... In fact, my own kidneys are not working... Father to save her... I didn't hesitate to donate a precious kidney... In that moment... Let the girl really feel the strong father's love... She ran to the hospital with tears in her eyes... But... She's late... Father had stopped breathing a few minutes ago... In the end, the girl could only throw herself on her father's body and cry bitterly... Her remorse at the time was indescribable... But... I can't do it all over again..."

Liu Ning faced Li Mengmeng's choked voice, he could no longer doubt the authenticity of this story, he was also deeply shocked, and couldn't help but shed tears of emotion.

Li Mengmeng calmed down her emotions: "Ning Ning, as I just said, father's love is sometimes very subtle, and it can even be deeply hidden, but father's love is as solid and thick as a mountain around you and me. Your father worked hard all day for the astronomical cause of the motherland to go to the forefront of the world, and he had to bury his love for you in his heart, but he really loved you. I hope you don't leave a deep confession like the girl in the story. ”

Liu Ning lowered his head and pondered for a long time, and finally made a decision: "Sister, you take me to see Dad!" ”

Li Mengmeng was very relieved when she saw that his attitude had finally changed, and immediately started the car-

When she drove to the gate of the observatory, Liu Ning looked up at the building through the car window, and couldn't help but have mixed feelings. He hadn't been here in years, and he was almost unfamiliar with the place.

Li Mengmeng parked the car and first made a call to Liu Xiaoguang-

In the studio deep in the building, Liu Xiaoguang and Cheng Xuedong were discussing a data with Nan Binghuai when they were interrupted by a mobile phone ringtone.

He said "I'm sorry" apologetically, took out his phone, and his face changed.

Nan Bing stared at him suspiciously: "Whose phone number?" ”

Liu Xiaoguang had no choice but to confess: "It's that girl's phone again." ”

"Oh, you said it's the girl named Li Mengmeng?"

Liu Xiaoguang nodded silently.

Cheng Xuedong's expression looked very dazed: "Lao Liu, is that girl really in love with you?" ”

Liu Xiaoguang's face turned a little red, but it was not good to be angry with Cheng Xuedong in front of Nan Binghuai.

Cheng Xuedong hurried: "Hurry up and answer the phone, don't make the girl wait for a long time." ”

Liu Xiaoguang was even more embarrassed to answer the phone, and was about to take back his mobile phone, but was stopped by Nan Binghuai: "You better take it, don't miss anything important." After all, people are still taking care of Shuyun. ”

In order to prove that the relationship between himself and Li Mengmeng was above board, Liu Xiaoguang answered the phone in front of them: "Hey, what is Mengmeng looking for me?" ”

Li Mengmeng's excited voice immediately came from the mobile phone: "Brother Liu, come out quickly, I'll pick up Ning Ning!" ”

Liu Xiaoguang's expression changed: "You... You brought him here? ”

"yes, I just picked him up from school. I think you two should have a conversation. ”

Liu Xiaoguang was entangled: "But I'm busy..."

Before his words fell, Nan Binghuai suddenly reached out and grabbed the phone: "Mengmeng, thank you." I'll send someone to fetch you in at once! ”

Liu Xiaoguang was stunned: "Professor Nan, we are currently an important place for scientific research. ”

Nan Binghuai smiled indifferently: "For a boy and a girl, are you still worried about leaking secrets?" It's time for your son to get to know the environment and nature of your work. In order to let him know your father, I made an exception. ”

Cheng Xuedong said excitedly: "That's it." Teacher Nan is very right, let me personally pick them up. ”

Liu Xiaoguang looked at Cheng Xuedong's hurried back and couldn't help but fall into deep thought. He really had mixed feelings in his heart at this time. After all, this is the first time he has faced his son after divorcing Xiao Shuyun. Can he really understand his own difficulties?

Nan Binghuai knew his feelings, and couldn't help patting him on the shoulder: "Don't live up to the good intentions of that girl Mengmeng, go to the door to greet them." I guess you should have an account for your son, right? ”