1. Time is something that human beings must cherish - Yuan Tao

2. Most of human food is lies, and there is only a very small amount of truth. The human spirit is very weak and cannot bear pure truth; it must be wrapped in a layer of lies around the truth by its religion, morality, politics, poets, and artists. ——Anonymous

3. Since you expect a glorious and great life, you should start from today with unwavering determination and unswerving faith, and rely on your own wisdom and perseverance to create you and human happiness. ——Anonymous

4. Just like a mother sometimes sacrifices for the dear creature she gave birth to, we should not cherish ourselves and should be prepared to give up our lives for its success. [Speaker] Zola, French writer. [Tip] For the great cause of mankind, we should put aside selfishness and fight for it with a diligent spirit to the end. If you don’t contribute enough, you will never do enough. ——Anonymous

5. The interests of the public and the welfare of mankind can make hateful work valuable. Only enlightened people can know the enthusiasm required to overcome difficulties. ——Anonymous

6. Life is only because it is short, so it should be integrated into the most magnificent history of human civilization to gain eternity; life is also only because it is short, so we should cherish every moment of youth even more. Make it emit as much light and heat as possible within a limited lifeline segment. ——Anonymous

7. “The fate of young people is in the hands of teachers, and the fate of the nation and mankind is in their hands.” ——Tao Xingzhi

8. Testing a person The fruit of one's ideals depends not on what he gets from society, but on what he gives to mankind. ——Wang Boxun

9. Struggle has been going on every day since the beginning of mankind. ——Sun Yat-sen

10. In ancient and modern times, at home and abroad, all achievements that have made a difference to mankind are the result of down-to-earth and hard work. ——Qian Sanqiang

11. Science is not for personal honor or personal gain, but for the happiness of mankind. ——Qian Sanqiang

12. I can insist on our contribution again and again, because only this kind of view can have the power to win the sympathy of mankind in the world. —— Rodin

13. How happy would mankind be if work was not the price of life, but the purpose. ——Rodin

14. Boredom is a serious problem for moralists, because more than half of human sins stem from the fear of it. ——Russell

15. Truly knowledgeable people are like ears of wheat: as long as they are empty, they stand tall and look up; but when they mature, they are full of bulging grains. At this time, they lowered their heads humbly and did not show their sharpness. Similarly, after all attempts and explorations, human beings have been unable to find anything solid and reliable in this complicated knowledge and various things except emptiness, so they abandoned their pretentious mentality and Acknowledged his original position. ——Montaigne

16. The value of health is extremely precious. It is the only thing worth human beings' time, blood, sweat, labor, wealth - and even their lives in pursuit of. ——Montaigne

17. The doctrine that made him devote himself to its early realization will not be affected by the establishment of all laws and the destruction of laws, but will grow stronger and mature day by day - just like soil. The seeds inside, no matter the cold in winter or the drought in summer, still dedicate their full grains to mankind. ——Pangda Pidan

18. I think the definition of good is beneficial to mankind. ——Bacon

19. The reason why people would rather believe falsehoods than love the truth is not only because it is difficult to explore the truth, but also because falsehoods cater to some bad human natures. ——Bacon

20. The lack of true friends is the purest and most pitiful loneliness; without friendship, the world is just a wilderness; we can also use this meaning to talk about "loneliness", all nature The character of a person who is not worthy of friendship may be said to come from animals rather than from humans. ——Bacon

21. In the long river of human history, truth is as heavy as gold and always sinks to the bottom of the river, making it difficult to be discovered. On the contrary, those fallacies that are as light as cow dung are not. Floating on it and flooding everywhere. ——Bacon

22. The real and reasonable purpose of science is to benefit human life and enrich human life with new inventions and wealth. ——Bacon

23. Etiquette is a subtle thing. It is indispensable for human communication, and it cannot be overestimated. If you value etiquette above all else, you will lose the sincere trust between people. Therefore, we must be good at finding a sense of proportion in language communication so that it is straightforward but not rude. This is the hardest and the best. ——Bacon

24. The history of mankind is a history of continuous development from the kingdom of necessity to the kingdom of freedom. ——Mao Zedong

25. Nature is great, and human beings are great. However, human activities full of noble spirit are especially great among the greats. ——Mao Dun

26. The obstacles to human happiness are: folk customs, religious prejudices, competition for survival, and inhumane things between each other.

——Lu Baha

27. To advance civilization for the world, create happiness for mankind, and use my youthful self to create a youthful family, a youthful country, a youthful nation, a youthful humanity, and a youthful earth. The universe of youth deserves to enjoy its boundless life. ——Li Dazhao

28. Efforts in life always go towards the bright side. This is the natural motivation for human beings to make progress...——Li Dazhao

29. The most interesting thing in life is It is to say goodbye to the old and welcome the new, because the highest desire of human beings is to create a new life at all times. ——Li Dazhao

30. Frugality and diligence are two famous doctors of mankind. ——Rousseau

31. Product development is inseparable from innovative ideas, which are the most beautiful flowers in human wisdom.

────China, "Product Development Techniques" by Guo Guanghua, page 95——Guo Guanghua