1. Always expand yourself and the world outside you with a positive and optimistic attitude. ——Zeng Xianzi

2. A cheerful personality can not only keep yourself in a happy mood, but also infect the people around you, making them feel that life is full of harmony and light. ——Roland

3. The so-called happiness refers to the absence of pain in the body and the absence of disturbance in the soul. ——Epicurus

4. Inner joy is the joy that a person feels in living a sound, normal, and harmonious life. ——Romain Rolland

5. The greatest happiness in life lies not in possessing something, but in the process of pursuing something. ——Banting

6. I have believed that if you talk about sad things with a happy mood, the sadness will disappear. ——Gorky

7. There is still a bright sunny day behind the dark clouds. ——Longfroe

8. Stay happy and you will do well, be more successful, healthier, and be kinder to others. ——Maxwell Maltz

9. Optimism is the beacon of hope. It guides you from the dangerous canyon to a smooth road, gives you new life and new hope, and supports your Ideals never die. ——Darwin

10. True happiness is optimism about life, joy at work, and enthusiasm for career. ——Einstein

11. As long as you have the beauty of spiritual temperament, as long as you have such self-confidence, you will have the natural beauty of grace. ——Golden Horse

12. The so-called inner happiness is the happiness that a person feels when he lives a healthy, normal and harmonious life. ——Romain Rolland

13. Life must be meaningful only by carrying forward life, and happiness is the best way to carry forward life. ——Zhang Wentian

14. A person may believe a lot of nonsense, but still be able to arrange his daily work in a reasonable and happy way. ——Norman Douglas