1. I learned the way to find happiness: limit your desires instead of trying to satisfy them. ——Milton

2. If you feel that you have a place in life, half of the problem of satisfaction will be solved. ——Wood Bailey

3. Uneasiness is dissatisfaction, and dissatisfaction is the first condition for progress. Show me a person who is content and I will tell you that he is a very unlucky person. ——Edison

4. The higher the intellectual and spiritual development of a person, the freer he will be and the greater satisfaction he will gain in life. ——Chekhov

5. The biggest common problem among ordinary people is that they are too complacent and blindly think that they are great, so they lack the ambition to make progress. The other kind of people are too insatiable, greedy, and have no self-discipline at all, let alone self-vigilance. A greedy person cannot hide his ugly face. His body is transparent and he lives a dramatic life. As a result, he falls into an abyss from which he cannot extricate himself. ——Bruce Lee

6. The happiest people seem to be those who are happy for no special reason. They are happy just because they are happy. ——William. ralph. Yingqi

7. Restlessness and dissatisfaction are the first necessities for progress. ——Edison

8. Love is a passionate infatuation, an unquenchable fire, an insatiable desire, a joy like sugar and honey, and a burst of intoxication. Madness, a toil without rest and a tranquility without toil. ——Richard de Fourniville

9. There is no sin greater than the desire, no disaster greater than dissatisfaction, no blame greater than the desire. Therefore, those who know what is enough will always have enough. ——Anonymous

10. The Chinese are not the only ones who are dissatisfied and unhappy. It is said that Americans should be the happiest. They have big houses, big cars, and the most powerful country. But unfortunately, survey results show that the United States People’s sense of happiness is not strong, not even as good as in China. Europeans are now in a generally depressed mood, and the happiness of yesterday is no longer there. ——Sima Nan

11. Little people are a necessary adjustment in society. Such characters are extremely enjoyable and even endearing if they are content with the role they have to play. ——Herzlit

12. We need to restore our faith in our ideals, destiny and ourselves. We don't live in this world just for pleasure and self-gratification. We have the mission to create history - not to ignore the past, not to destroy the past, not to retreat to the past, but to move forward and be positive to open up new prospects for the future. ——Richard Nixon

13. It has dual nature: on the one hand, it lies in the blessing of the soul and good fortune...on the other hand, it is also the most practical aspect, which is to live your daily life contentedly and happily. Live, that is to say, with a clear head and without doing stupid things. ——Fontana

14. We don’t know whether pigs can be as happy as humans; but we often see humans as easily satisfied as pigs. ——Qian Zhongshu

15. There are always people who leave early. ——Yu Yue

Subject to word limit, for reference only.