1. Only by obeying nature can we control nature. Bacon (UK)

2. Man's bounden duty is to have the courage to explore the truth. Copernicus (Poland)

3. A society will be strong only when it makes the truth known to the public. (Zola)

Hello classmate, if the problem has been solved, remember to accept it in the upper right corner~~~Your acceptance is my affirmation~Thank you