Sun Yat-sen was the pioneer and great leader of China’s modern democratic revolution. His famous quotes and warnings inspired countless people. The following are some of Sun Yat-sen's famous warnings:

1. "Don't ask others for what you should do for yourself; don't wait for tomorrow for what you should do today." This sentence emphasizes personal responsibility and prompt action. importance.

2. "If you believe that it is possible, it will be difficult to move mountains and fill the sea, but you will eventually succeed. If you do not believe that it is possible, it will be easy to break branches, and there will be no hope of success." This sentence The words encourage people to have faith and believe that their goals are feasible.

3. "My ambition is to move forward indomitably; the more frustrated I am, the more excited I am, and I will keep working hard." This sentence expresses a firm will and an indomitable spirit.

4. "Aspiration is the most important thing for a scholar." This sentence emphasizes the importance of ambition, especially for those who pursue knowledge.

5. "If people make full use of their talents, they can do everything; if they can do everything, there will be no hope for prosperity." This sentence emphasizes the importance of talents and believes that only by giving full play to the role of talents can we achieve success. Only then can the country be truly prosperous and strong.

6. "The world is for the common good": Emphasizes that the country should be the common property of the people, and political power should be elected democratically to serve the people.

7. "Three People's Principles": It puts forward the concepts of "national independence", "democratic politics" and "people's livelihood and happiness", and advocates China's modernization and democratization.

8. "The revolution has not yet succeeded, comrades still need to work hard": Encourage revolutionaries to strengthen their confidence and continue to work hard until the revolution is victorious.

The important significance of Sun Yat-sen's thought is:

1. Promoted China's democratic revolution: The "Three People's Principles" (national independence, democratic politics, and people's livelihood and happiness) proposed by Sun Yat-sen became the basis for modern China's The guiding ideology of the democratic revolution promoted China's transformation from feudal autocracy to a modern democratic country.

2. It laid the foundation of China’s Republic of China: The Revolution of 1911 led by Sun Yat-sen overthrew the feudal rule of the Qing Dynasty, established the Republic of China, and ushered in the historical period of China’s Republic of China.

3. Leading China’s modernization process: The modernization thoughts and reform concepts advocated by Sun Yat-sen laid the foundation for China’s modernization process. He advocated the development of science, education, industry and agriculture, and advocated national independence, democratic politics and social progress.