On this day, 57 years ago, September 5, 1968 (July 13, 1968, the lunar calendar), my country launched a campaign to re-educate intellectuals. On September 5, 1968, the People's Daily first published the investigation report of Shanghai City,"Looking at the Educational Revolution of Science and Engineering Universities from the Struggle of Two Lines at Shanghai Institute of Mechanical Engineering" published in the third issue of "Red Flag" magazine (published on September 10), and published Mao Zedong's editor's note for it. Editor's note written by Mao Zedong: "One question raised here is that we should pay attention to re-educating the large number of graduates of higher and secondary schools who have already worked in the past and are now working in order to integrate them with workers and peasants. Among them, there must be those that are well integrated and have inventions and creations, which should be reported to encourage them. Those that really cannot work are the so-called stubborn capitalist rovers and bourgeois technical authorities. Only a very small number of people are angry and need to be overthrown. Even for these people, we must give them a way out. The above policies should be the same for both old and new intellectuals in liberal arts and sciences. "On the 12th," On the Re-Education of Intellectuals "published by commentators of People's Daily and Red Flag magazine clarified the editor's note written by Mao Zedong for Red Flag magazine, pointing out that the central issue is that the workers, peasants and soldiers re-educate intellectuals.