自１９４７年至１９５２年，李广田在清华大学度过了５年不平凡的岁月。这５年，是其思想发展的质变期。１９４８年，《人物杂志》约其作“自传之一章”，７月他作成《自己的事情》一文，文中对自己生平的介绍极其简要，对其在清华的生活也未曾涉及。在文前的按语中，他对写自 From 1947 to 1952, Li Guangtian spent five years extraordinary years at Tsinghua University. These five years are the qualitative changes of their thinking. In 1948, “People Magazine” made about “chapter of autobiography,” and in July he made “his own thing,” a text whose introduction to his life was extremely brief and his life in Tsinghua was never involved. In the prepositions, he wrote to himself