1, we should not waste our lives, we should be able to say, "I have done what I can." Madame Curie

People who never waste time have no time to complain about lack of time. Jefferson

No one does not cherish his life, but few people cherish his time. -Liang Shiqiu

The person who lives the longest is not the one who lives the longest. -Solzhenitsyn

5. I am in aviation. People who engage in aviation don't fly, who will sit? -Guo Yonghuai

6. Academicians actually have some experience in one field, and they are also primary school students when they leave this profession. Zhu Zhaoliang

7. Genius is not enough, cleverness is unreliable, and it is unimaginable to pick up great scientific inventions conveniently. -Hua