Chapter 5 logic

When Jin Yuelin was a teenager, he logically deduced that there was something wrong with the Chinese saying "money is like dung, and friends are worth a thousand pieces of gold".He found that if these two sentences are taken as the premise, the logical conclusion should be "friends are like dung". At the end of the Qing Dynasty and the beginning of the Republic of China, the problem of dialect was relatively serious. After everyone arrived in Beijing, they all began to learn to speak Beijing dialect.Not long after Jin Yuelin came to Tsinghua University to teach, there was an opening ceremony hosted by Dean Zheng Tongsun.After the ceremony, he walked with Jin Yuelin. He asked Jin Yuelin if he could hear him clearly. Jin Yuelin said: "It's clear, although you speak Shanghai dialect." He was shocked: "Ah! I still have an accent!" The article recalled: "This sentence is still spoken with a Shanghai accent."

Xu Zhimo described his friend Jin Yuelin who studies logic in this way: "Mr. Jin's hobby is to pick up a noun's hair and hold it patiently in his hand to give points. He can stop eating for a while, but this hair is so thick that it is disgusting. , you can’t feel comfortable unless you split it open..." Chen Yunzhen, Wang Shuzang, Liu Beisi, Shi Zaixuan (Xiao Di) and others from the Southwest Associated University lived in Jinji Lane, and there was a small living room upstairs.Shen Congwen sometimes brought an acquaintance to talk to a few literature-loving classmates.Mr. Jin was also taken away once.The title of his lecture was "Fiction and Philosophy".The topic was given to him by Shen Congwen.Everyone thought that Mr. Jin would speak some truths.Unexpectedly, after Mr. Jin talked for a long time, he came to the conclusion that novels have nothing to do with philosophy.Someone asked: So what?Mr. Jin said: "The philosophy in Dream of Red Mansions is not philosophy." He was talking, and suddenly stopped: "I'm sorry, I have a little animal here." He put his right hand into the back of his neck, caught a flea, pinched it on the Look in your fingers, very proud.

Jin Yuelin, Liang Sicheng and Lin Huiyin are good friends.Liang Sicheng said: "The three of us have always been good friends. I often consult Lao Jin when I encounter difficulties at work. Even when Huiyin and I quarrel, I often ask Lao Jin to 'arbitrate', because he is always so rational. Clarifies the problems we get confused by emotions." Jin Yuelin has carefully distinguished between "love" and "like" two different feelings or feelings.He said that love talks about parents, couples, and sisters.The more natural affection between brothers; what I like to say is the affection between friends, which is joy.The two are often unified, that is, they are both relatives and friends; there are also many times when they are not unified.

Mr. Jin in Ji Xianlin's eyes: At the opening ceremony of Tsinghua University on September 14, 1932, so many celebrities gave speeches, such as Mei Yiqi, Zhu Ziqing, Guo Binhe, Xiao Gongquan, Jin Yuelin, Gu Yuxiu, Yan Shutang, etc., Ji Xianlin felt that Jin Yuelin gave the best speech.Jin Yuelin said that he saw a play in Paris, describing a patient (representing nationals of various countries), surrounded by many doctors, some said it was heart disease, some said it was lung disease, some advocated "Left" leaning, some The idea is right leaning.There are many miscellaneous stories, and there is no consensus.This means that all kinds of theories are a kind of cure that comes to mind when seeing the current world crisis, but in the end there is no way.Jin Yuelin also said that there are all kinds of animals in the zoo, but monkeys are the most timid and restless.Human beings are related to monkeys, so the conclusion that human beings are immortal is unreasonable.At that time, Ji Xianlin felt that he was really a monster, so he dared to say that.

During the War of Resistance Against Japan, among the graduate students taught by Mr. Jin Yuelin, there was an interesting person who used logical reasoning ingeniously.At that time, the Japanese often bombed Kunming, where the Southwest Associated University is located, and people often ran to the police.The graduate student in the Department of Philosophy made some logical reasoning in advance: when running the alarm, people would take the most valuable things with them; at that time, the most convenient and most valuable thing to carry was gold.Then, if someone brings gold, someone will throw gold; if someone throws gold, someone will pick up gold; I am a human being, so I can pick up gold.According to this logical deduction, the graduate student carefully inspected the places where people walked after each alarm run.As a result, he really picked up the gold ring twice!

Jin Yuelin recalled Hu Shi like this: "I don't know many people, and some of them should be studied. Hu Shi is one of them. I don't know much about him. I think he is always a person with a lot of knowledge of Chinese history, otherwise, he could not be there. At that time, Peking University taught the history of Chinese philosophy. I really don't understand this gentleman.When I knew him very early, he came to me one day, but I forgot the specifics.When we talked about necessary, he said: 'There is simply nothing necessary or necessary to be done. ' I said: 'That's strange, there is a factual necessity, a psychological necessity, and a theoretical necessity...' I really think there must be something wrong with him.He is engaged in philosophy!

Another time, after I wrote the "On Surgery".Talking about my article, he said he didn't understand abstract things.This is also a strange thing, he is a professor of the history of philosophy! "