On this day 47 years ago, on March 18, 1978 (February 10, 1978 lunar calendar), the National Science Conference was held. From March 18 to 31, 1978, the Central Committee of the Communist Party of China and the State Council held a grand National Science Conference in Beijing. At the opening ceremony of the conference, Deng Xiaoping made an important speech, Vice Premier Fang Yi made a report on the plans and measures for the development of science and technology, and the conference read a written speech by Guo Moruo, President of the Chinese Academy of Sciences: "Spring of Science - Speech at the Closing Ceremony of the National Science Conference", at which advanced collectives and advanced scientific and technological workers were commended. This conference is an important meeting held by the Communist Party of China after crushing the "Gang of Four", and the country is in a situation where the country is in ruins, and it is also a landmark event in the history of China's scientific and technological development. In his speech at this conference, Deng Xiaoping clearly pointed out that "the key to modernization is the modernization of science and technology," "intellectuals are a part of the working class," and reaffirmed the basic Marxist view that "science and technology are productive forces." Thus clarifying the major theoretical right and wrong issues that have long hindered the development of science and technology, opening the shackles that have long imprisoned intellectuals since the "Cultural Revolution", and ushering in the spring of science. Over the past 20 years, under the guidance of Deng Xiaoping's scientific and technological thought, the strategy of rejuvenating the country through science and education has been implemented, and the reform of the scientific and technological system has been deepened. A large number of scientific and technological achievements of great significance to economic and social development have been achieved. The scientific and technological team has continued to grow, and a large number of outstanding scientific and technological talents have emerged. The development of science and technology has shown a prosperous scene. Hua Guofeng and Guo Moruo, President of the Chinese Academy of Sciences, intellectuals at the scientific conference