As early as the end of19th century, Sun Yat-sen took the lead in putting forward the slogan of "rejuvenating China". To this end, he proposed that "the purpose of our revolution is to seek happiness for all beings, because we don't want a few Manchu patents, we want a national revolution; I don't want the monarch to apply for a patent alone, so I want a political revolution; I don't want a few rich people to apply for patents, so I want a social revolution.

Sun Yat-sen was the first to shout out the slogan of "rejuvenating China" and was a great revolutionary forerunner in China. In the history of China, he was the first to comprehensively put forward the theory and program of bourgeois democratic revolution. 19 1 1 The outbreak of the Revolution of 1911 failed to change the social nature of old China and the miserable situation of the people, but it overthrew the autocratic monarchy that ruled China for thousands of years and started the bourgeois national democratic revolution in a complete sense. Sun Yat-sen expounded the ideological system of the Three People's Principles in theory. 1924, under the influence of the October Revolution in Russia and with the help of China's * * * Production Party, three policies were formulated to unite Russia, unite with * * * and help the peasants and workers, which developed the old Three People's Principles into the new Three People's Principles and realized the first cooperation between the two countries. 1March 2, 925 Sun Yat-sen passed away in Beijing. In his will, he advocated that "the people must be aroused, and the nations that treat me equally in the world must unite and fight together." This is the essence of the 40-year experience of Sun Wen Theory. Sun Yat-sen is the greatest revolutionary pioneer in the bourgeois democratic revolution era marked by the Revolution of 1911.