1. Happiness lies in autonomy and self-sufficiency. --Author of the work: Aristotle

2. When there is life, there is happiness. --Author of the work: Leo Tolstoy

3. The purpose of all human efforts is to obtain happiness. --Author of the work: Owen

4. Happiness is the highest good. --Author of the work: Aristotle

5. Happiness belongs to satisfied people. --Author of the work: Aristotle

6. All happiness is obtained by the blood of life. --Author of the work: Wang Jinmei

7. Living according to moral principles is a happy life. --Author of the work: Aristotle

8. Do you want to be a happy person? I hope you first learn to endure hardship. --Author of the work: Turgenev

9. Fighting against difficulties, although it has to go through hardships, it is also a pleasure to be rewarded after all the hardships. -Xu Teli

10. In every country, knowledge is the most reliable foundation for public happiness. --Author of the work: Washington

11. True happiness is hard to see with the eyes. True happiness is found in the unseen. --Author of the work: Yang Ge

12. Everyone hopes to live a happy life, and everyone should try their best to overcome difficulties. --Author of the work: Xu Teli

13. You should do more good deeds in order to be a happy person. --Author of the work: Leo Tolstoy

14. In order to live happily, we should believe in the possibility of happiness. --Author of the work: Leo Tolstoy

15. Only revolutionaries, whether alive or dead, can bring happiness to everyone. --Author of the work: Lu Xun

16. If anyone is truly content and happy in his heart, he will be able to obtain all happiness. --Author of the work: "Five Volumes"

17. Happiness will only be given to those who are not afraid of labor and those who have worked selflessly for many years. --Author of the work: Suhomlinsky

18. Happiness exists in life, and life exists in labor. --Author of the work: Leo Tolstoy

19. Happy families are all similar, and unhappy families are each unhappy in their own way. --Author of the work: Leo Tolstoy

20. Happiness is only after hard work. Labor can give people complete happiness and happiness--Author of the work: Labor. --Author of the work: Qu Qiubai