2. The bounden duty of human beings lies in the courage to explore the truth. -Copernicus (Poland)

All reasoning must come from observation and experiment. Galileo

For those who are engaged in science, diligence is the mother of success. -Mao Yisheng (China)

5. Exercise is the source of all life. -Leonardo da Vinci (Italy)

6. The foundation of science is a healthy body. -Madame Curie (France)

7. Truth may be on the side of a few people. -Plato (Greece)

8. If you deviate from the truth at first, you will end up a thousand miles away. -Aristotle (Greece)

9. No one can fully grasp the truth. -Aristotle (Greece)

10, science is an orderly knowledge system based on testable explanation and prediction of the form and organization of objective things, and it is systematic and formulaic knowledge.

1 1. According to the fields reflected by science, it is mainly divided into natural science, social science, thinking science, formal science and interdisciplinary.