Recently, I read Ji Yulin's "Cow Spa Try", one of which is the autobiography of the old season. The inside wrote: "At that time, a word is called 'rice bowl, and it is also popular. Question. I started from the third grade to hurt my brain. I face the maintenance of the main economic burden of the family. However, I am blowing, running away. When the night is quiet, I seem to have a pot in my head. However, the result is a fight. "The" At that time "in the old season refers to the mid-1930s, he is reading in Tsinghua. At the time, the university was in Northern University, Tsinghua was the most priced, but even the Tsinghua student, such as the old season, did not find a job. Fortunately, a teacher in the old season in the old season invited him to return to Shandong to make a national teacher. He is reluctant to escape the crisis of "graduation, unemployment". Later, Tsinghua and the German university signed an agreement between mutual international students, the old season registered, and passed the exam, abroad. Two years later, he had returned to the country and has been engaged in research and teaching in Peking University. The study of the old season has been tired, the work, etc., is a generation of national treasures.