1. Li Siguang’s famous sayings are as follows:

1. Even if we only see a glimmer of truth, we cannot let its brilliance dim. ?——Li Siguang

2. I am a descendant of Yan and Huang, and it is natural that I should dedicate all the knowledge I have learned to my dear motherland. ?——Li Siguang

3. The true scientific spirit must be developed from correct criticism and self-criticism. Real scientific results must stand the test of facts. With such double protection, we can do it with confidence and boldness, and will not dig ourselves into the trap of arrogance. ?——Li Siguang Science respects facts and cannot make up reasons to adhere to a theory. ?——Li Siguang

4. ?Science is an honest thing, and it relies on the labor and wisdom of many people to accumulate. ?——Li Siguang

2. Li Siguang became a geologist as a result of hard study and hard work.

3. Character introduction:

Li Siguang (1889.10.26-1971.4.29), courtesy name Zhonggong, formerly known as Li Zhongkui, was a native of Huanggang, Hubei, Mongolian, geologist and educator. , musician and social activist, is the founder of Chinese geomechanics, one of the main leaders and founders of modern earth science and geological work in China, one of the first batch of outstanding scientists after the founding of New China and made contributions to the development of New China A hero with outstanding contributions, he was elected in 2009 as one of the 100 people who have touched China since the founding of New China.