Professor Yan left with anger. When Chen Qiaoshan chased him out, everyone had already gone downstairs and was pushing the old bicycle to leave.

In addition to some official activities and off-campus academic exchanges, Professor Yan usually travels with the Economic Research Center at home, and even the School of Economics and Sciences rarely come here.

After retirement, the old man's treatment was similar to that of Li Gufeng. He always had a secretary and a special car when he went out. However, he usually expects that old man to be with his transportation at school. There is also a bamboo child chair tied to the back seat of the car, which is Yan Yan's special seat.

The little girl is the top of the Yan family. She is not old, but she is really not a good person. The old man is already in his seventies and it is a bit difficult to hold her. Occasionally, he would carry her little girl around the campus. This is a rare family.

Seeing Chen Qiaoshan follow him out, Professor Yan's face cleared a little, but he ignored him and rode his bike away. He looked at the direction and probably went to the Economic Research Center. Chen Qiaoshan had no choice but to follow.

The master-apprentice group, one old and one young, was not conspicuous on campus. It was not until he entered the office that Professor Yan sat behind the desk and asked, "I heard that you still knew how to read books when you were idle at home?"

Chen Qiaoshan was stunned and then smiled bitterly: "Okay, old man, it is said that the fortress was breached from the inside, but I didn't expect that someone would inform you."

In addition to Yan Xiaoqin, Xiaowu is familiar with the situation at home. The former is doing the final debugging preparation for the website online, and is busier than Chen Qiaoshan. No need to think about it, Xiaowu is the one who has time to chat with the old man.

Professor Yan said: "Xiao Wu is much more caring than you. At least he knows to come here to talk to us. You are fine. You can't see anyone at any time and don't know what you are busy with."

If he didn't know the old man's thoughts, Chen Qiaoshan would have been in vain. This person was obviously dissatisfied with his attitude towards studying. There was nothing he could do about it. Although he didn't have to keep an eye on so many investment projects in his hands, he didn't have much free time left for him. How could he be at ease with academics?

Just as he was thinking about how to deal with it, Professor Yan did not pursue it anymore, but asked, "Tell me, what books do you usually read?"

"Teacher, I'm learning regression analysis recently."

"Oh?" Hearing this answer, Professor Yan's face improved a little.

Regression analysis is a predictive modeling technology that uses mathematical statistics to conduct quantitative research on economy. It studies the potential connection between dependent variables and independent variables. It belongs to the category of econometrics and is an extremely important economic tool.

So far, undergraduate studies, including Guanghua and the School of Scholarship, have not included econometrics in the teaching plan. Only when they reach the postgraduate stage will research in subdivided fields be carried out.

Although this disciple looked at Wuxin Xiang Xue, he was still conscious. At least the learning progress was not slow. Professor Yan nodded, and finally there was room for rescue. "So, as long as you are in Yanjing, you can come at least once a week. I don't make any quantitative requirements. Let's just talk casually. What do you think?"

Gossip is fake, but it is probably true that the exam is better than the academic exam. Although Chen Qiaoshan knew the old man’s intention, he refused and had to accept it.

Professor Yan didn't say anything more. He stood up and searched the bookshelf behind him for a while, and finally took out a long paper tube from the top. It was probably a while ago, with a thick layer of old newspapers wrapped around the outside, and he didn't know what was wrapped inside.

Professor Yan checked it solemnly, and saw that the packaging was still intact. Then he sighed and put the thing on the desk and said, "This is a piece of calligraphy I left at Peking University for the first year I have been teaching at Peking University. Now I am the only student left. I will give it to you today."

Chen Qiaoshan was happy. He didn't expect that there would be gifts to collect today, but he refused: "This is not suitable, otherwise you should leave it to Brother Yan."

Professor Yan glared at him and taught a lesson: "Give it to him? That's a waste of things. OK. Don't waste time here on me, take the things and leave."

Chen Qiaoshan then picked up the letter, feeling that it didn't have much weight, so he put away the things and left.

When he arrived outside, Chen Qiaoshan was also very curious. The old man had been at Peking University all his life. According to time, his husband was at least a figure from the Republic of China period. Since he could be passed down, he might be just an antique. Thinking of this, he was also very enthusiastic. He was thinking about going home and taking a good look, but he received a call from his senior brother.

Thinking that there was something to talk to Dean Liu, Chen Qiaoshan had to put away his curiosity and turned to the ritual school again.

The signing ceremony had ended, and Chen Qiaoshan went straight to the hospital office and entered the dean's office with familiarity.

"I heard from Professor Chen that you made the old man angry? Tell me, what's going on?" Liu Wei was very curious. The old man would not get angry easily, especially in front of others, and would not shy face the students.

Chen Qiaoshan sat down casually. Although Liu Wei was the head of the First Hospital, he had a relationship with his brothers and the two had no real interests, so they could get along easily. "It's not true, the teacher is just in a bad mood and doesn't like to get involved in such collusions between officials and businessmen."

"How do you say?" Liu Wei's face looked a little bad. This time, he cooperated with Yabuli Forum, and the Institute of Economics received the largest corporate sponsorship in history. Not only that, the real estate center was also successfully listed. It is said that Guanghua had such intentions, but unfortunately, due to the limited funds, the Institute of Economics finally won a battle this time.

Chen Qiaoshan smiled and knew that this person was also a tough guy, so he stopped teasing him.

"What are you holding in your hand?" Liu Wei also noticed what Chen Qiaoshan had in his hand and asked.

"Oh, I just got a piece of characters from the old man." Chen Qiaoshan gestded casually, then quietly put the object in his hand, just outside Liu Wei's sight.

After all, it is the old man's thing. Although he doesn't know the value, he is a disciple and does not worry about being weak but not being equal. Chen Qiaoshan doesn't want to cause a rift to his brothers.

Liu Wei was not easy to fool. When he noticed Chen Qiaoshan's deliberate actions, he smiled and said, "Okay, don't hide it, take it out and take it out and see. Since it was given to you by the old man, I won't argue with you. Look at your stingy look."

"This is what you said. Don't blame the old man for being partial to you then." Chen Qiaoshan reluctantly took out the word "Fu". He was actually very curious and wanted to see what it was.

Liu Wei was not polite. He came over and took the letter from Chen Qiaoshan, looked up and down, and then peeled off the newspaper outside layer by layer. Finally, a yellowed scroll inside was exposed.

Without looking, Chen Qiaoshan can already feel the age of time and even the shaft head is missing.

Due to poor storage, the paper on the edge was cracked, which made Chen Qiaoshan frown. The old man seemed to be a bad business person, so how could he keep calligraphy and painting like this? If this is a rare book, it would be ruined.

Liu Wei was also aware of the goods. After dismantling the outer layer, his movements slowed down and carefully placed the inner layer on the table, and then he slowly opened it.

When the scroll is unfolded, the eight big words "Maintain the country and benefit the world, and be strong in quality and practice" will leap on the paper.

Chen Qiaoshan is an amateur in calligraphy. He only feels that these words are relaxed and elegant, and look pleasing to the eye. As for whether they are good or not, they cannot appreciate the good things. The only thing that is certain is that he definitely cannot write such words.

Looking at these words, Liu Wei sighed indecisively.

Chen Qiaoshan was very sensitive and asked hurriedly: "Do you know this character?"

"Don't you know each other?" Liu Wei was obviously angry and couldn't help but run.

Chen Qiaoshan felt a little helpless. He could feel that this calligraphy should have a history, but he just got the cheaper one and was not easy to care about.

Liu Wei stopped talking and continued to spread out the whole text, and the signature line was revealed. "Mr. Lian Chengzun's elegant family is the first chapter of the Yi in the 24th year of Xi Jianzheng", and then there was a seal. Unfortunately, it was too old and it was difficult to identify. Even if he could still recognize it, Chen Qiaoshan could not recognize it. He knew nothing about seal characters.

"I didn't expect that the old man gave you this letter." Liu Wei was quite sighing.

Chen Qiaoshan didn't care much at this time and asked with a shy face: "Senior Brother, who is this calligraphy?"

Liu Wei glanced at him, although it was a pity, he still explained: "At this time, Peking University professor Mr. Ma Xulun gave it to Mr. Zhao Naituan during the Republic of China."

"Mr. Zhao went to the United States to study economics during the Western period and was well-versed in English and French. At that time, there was no such thing as institutional economics. This term was first proposed by Mr. Zhao in his graduation thesis at Columbia University and was eventually widely adopted by the economics community."

Speaking of these past events, Liu Wei also knew them well. Chen Qiaoshan thought that Professor Yan should have told this senior brother this history.

"The old man is Mr. Zhao's student. Mr. Zhao has been teaching at Peking University for more than fifty years. I studied at Peking University and saw him. This hand-made book was given to the teacher back then. You don't know yet. Mr. Zhao's original paper on Brother University graduation thesis is now in the hands of Guanghua's Li Co., Ltd."

Liu Wei's tone was a bit regrettable and intriguing.

Chen Qiaoshan knew nothing about these history, all of which were the old almanacs decades ago. He had no way of knowing except the person involved, but he was quite surprised when he saw this calligraphy.

Conquer the country and benefit the world, and be strong in character and practice.

It can be said that it expresses the mission and responsibilities of the economist in one word, especially in the chaotic era of the Republic of China, which is particularly rare.

"Since the old man gave you this letter, please keep it carefully and go back and think about it carefully. How to live up to the old man's intentions." Liu Wei seemed to be out of sight, and he had to remind him a few words.

Chen Qiaoshan nodded repeatedly. He still understood the rules, but when he saw the signature, he couldn't help asking: "Is this Ma Xulun very famous? This calligraphy was written in 1924?"

"He was the first Minister of Education after the liberation. Is this famous?" Liu Wei's tone was a little unkind and said, "The 24th year of the Republic of China, 1935, I don't even understand this? How did you get the top scholar in Henan Province?"
Chapter completed!