On March 12, 1925 (the fourteenth year of the Republic of China), he died of liver cancer in Beijing at the age of 59. Sun Yat-sen was born on November 12, 1866 in Cuiheng Village, Xiangshan County, Guangzhou Prefecture (now Zhongshan City), Guangdong Province. Sun Yat-sen originally studied medicine in Hong Kong and became a doctor of Western medicine.

After the Opium War, Sun Yat-sen saw that the Chinese nation was in danger of being carved up by Western powers, and decided to abandon his "career as a doctor" and pursue the "career of the country." Sun Yat-sen was influenced by Zheng Guanying's reform ideas in his early days. Later, he saw clearly the corruption of the Qing government and determined to overthrow the Qing dynasty and establish a democratic republic.

Sun Yat-sen's famous saying:

1. Scholars should know that it is natural and why it is so. If it happens by chance, it cannot be called learning. ——Sun Yat-sen;

2. I will move forward indomitably toward my goal. The more I get frustrated, the more excited I will be, and I will keep working hard. ——Sun Yat-sen;

3. To govern a country, talent is the most important thing. ——Sun Yat-sen;

4. Those who achieve success will gain temporary glory, and those who are honest will have eternal karma. ——Sun Yat-sen;

5. When people make full use of their talents, they can do everything; if they can do everything, there will be no plan for wealth and strength. ——Sun Yat-sen;

6. With our mortal lives of several decades, we can establish the foundation of a country that will last for hundreds of millions of years. The value of this can be seen. ——Sun Yat-sen;

7. Struggle is something that has been going on every day since the beginning of mankind. ——Sun Yat-sen;

8. I hope you will put the responsibility of revitalizing China on your own shoulders. ——Sun Yat-sen;

9. Study hard and serve the country. ——Sun Yat-sen;

10. Determination is the most important thing for a scholar. ——Sun Yat-sen;

11. The revolution has not yet succeeded, comrades still have to work hard. ——Sun Yat-sen;

12. My lifelong hobby. Apart from revolution, there is only good reading. If I don’t study for a day, I can’t live. ——Sun Yat-sen;

13. The foundation of a country lies in its people. ——Sun Yat-sen;

14. Safety will eventually have to be fought, and we must taste the joys and sorrows when they come. ——Sun Yat-sen 15. The world is for the common good. ——Sun Yat-sen.