1. True happiness is inner and can only be found in the human soul. --Bremer

2. All harmony and balance, health and fitness, success and happiness are generated and caused by the upward psychology of optimism and hope. --Washington

3. When life is as light and smooth as a song, it is easy to keep smiling; and those who can still smile when everything is going wrong are truly optimistic. -- Wilcox

4. You should not pursue all kinds of happiness, but only noble happiness. -- Democritus

5. Destiny is nothing but boring masturbation for losers, and ridicule for cowards. People's future can only be determined by their own will and efforts. --Mao Dun

6. Failure is also what I need. It is as valuable to me as success. --Edison

7. What we care about is not whether you fail, but whether you can have no complaints about failure. --Lincoln

8. Failure is also what I need. It is as valuable to me as success. --Edison

9. A failure only proves that our determination to succeed is still strong enough. -- Bowie

10. For those who persevere, there is no such thing as failure. --Bismarck

11. Failure is the final test of perseverance. --Bismarck

12. What is failure? Failure is the first step to a better place. -- Philips

13. Optimism makes you prone to happiness, health and success in your career, while pessimism makes you prone to despair, illness, failure, depression, loneliness and cowardice.

14. "Don't be ashamed to be the last." Even if he is slow, galloping, falling behind, or failing, he can definitely achieve the goal he longs for. --Lu Xun

15. Genius is the ability to work hard and diligently without end. --Carlisle