The famous sayings about single-mindedness are as follows:

1. The saddest thing for a person is the death of conscience. ——Guo Moruo

2. The goal should be ambitious and never give up until the goal is achieved. —Bo Jackson

3. Life is a battle. ——Korolenko

4. If you want to love your own value, you have to create value for the world. ——Goethe

5. A person’s life may burn or decay. I cannot decay, I am willing to burn! ——Ostrovsky

6. We judge human activities by their purposes. Only when the purpose is great can the activity be said to be great. ——Chekhov

7. Life is not a pleasure, but a very heavy task. ——Leo Tolstoy

8. Reason is higher than the heart, and thoughts are more reliable than emotions. ——Golky

9. The ideal character must not only satisfy the material needs, but also satisfy the spiritual purpose. ——Hegel

10. People full of joy and fighting spirit always welcome thunder and sunshine with joy. —— Huxley

11. The most valuable revolutionary quality is to remain unstained in the mud and not corroded by the sugar-coated bullets of the bourgeoisie.

12. The dark night is the prelude to day. ——Guo Xiaochuan

13. Those who accomplished great things in ancient times not only had extraordinary talents, but also had perseverance. ——Su Shi

14. The only shortcoming we will not correct is weakness. ——La Rochefoucauld

15. A person’s energy and time are limited. Only by grasping his true interests and talents during his lifetime and working on them with concentration can he achieve something. Not only must you have courage, but you must also have judgment, get rid of the temptation of other foreign affairs, and do not change your path midway for the sake of fame, wealth, power, and other vanities. Only in this way can one's career be brilliant.

16. Let us make dishonor the most severe part of the punishment! ——Montesquieu

17. Do not do evil because it is small, and do not do good because it is small. Only those who are virtuous and virtuous can obey others. ——Liu Bei?

18. The only work and all work of education can be summarized in this concept of morality. ——Herbart

19. All self-interested lives are irrational and animal lives. ——Leo Tolstoy

20. One should be zealously committed to acting morally rather than talking about morality. ——Democritus