1. A person must use all his strength to improve himself and not waste his strength on anything else. ——Leo Tolstoy

2. With a life as clear as water and an honest character, no matter what class you are in, even the most evil-minded people will stand in awe. In Paris, true morality is as appreciated as a diamond or a rare treasure. ——Balzac

3. Law is revealed morality, and morality is hidden law. ——Lincoln

4. People should be wise in wisdom, morally innocent, and physically clean. ——Chekhov

5. A gentleman’s journey is to cultivate one’s character through tranquility and cultivate one’s virtue through frugality. Without indifference, one will not be able to clarify one’s aspirations, and without tranquility, one will not be able to reach far. ——Zhuge Liang

6. Communism is not only manifested in the fields and sweaty factories, it is also manifested in families, around the dinner table, among relatives, and in mutual relationships. ——Mayakovsky

7. A law-abiding and conscientious person will not steal even if there is an urgent need. However, even if he gives millions of gold dollars to a thief, there is nothing he can do. I hope he will never steal again. ——Krylov

8. History makes people smart, poetry makes people witty, mathematics makes people sophisticated, philosophy makes people profound, morality makes people serious, logic and rhetoric make people eloquent. ——Bacon, Francis

9. The two most sacred, enduring and ever-changing things, the two things that most surprise and shock us, are the stars in the sky and the moral law in our hearts. ——Kant

10. Emotion has great inspiring power. Therefore, it is an important prerequisite for all moral behavior. ——Kelov

11. The essence of self-cultivation is like human character, which ultimately comes down to the issue of moral sentiment. ——Emerson

12. It doesn’t matter whether you are born noble or humble. But you have to have a way of being a human being. ——Goethe

13. Without great character, there would be no great people, not even great artists or great actors. ——Romain Rolland

14. The monster of habit, although it is a devil, will swallow up all shame, and it will also become an angel, cultivating the accumulated virtues and good deeds into a natural and comfortable routine. ——Shakespeare