The Three Principles of the People, also translated as Three People's Principles, or collectively San-min Doctrine, is a political philosophy developed by Sun Yat-sen as part of a philosophy to make China a free, prosperous, and powerful nation. Its legacy of implementation is most apparent in the governmental organization of the Republic of China (ROC), which currently administers Taiwan, Penghu, Quemoy, and Matsu Islands. This philosophy has been claimed as the cornerstone of the Republic of China's policy as carried by the Kuomintang (KMT). The principles also appear in the first line of the National Anthem of the Republic of China. The three principles are often translated and summarized as nationalism, democracy, and the livelihood of the people.
Mínzú
The Principle of Mínzú is commonly rendered as "nationalism", literally "Populism" or "the People's rule/government", "Mínzú/People" clearly describing a nation rather than a group of persons united by a purpose, hence the commonly used and rather accurate translation "nationalism". By this, Sun meant freedom from imperialist domination. To achieve this he believed that China must develop a "China-nationalism," Zhonghua Minzu, as opposed to an "ethnic-nationalism," so as to unite all of the different ethnicities of China, mainly composed by the five major groups of Han, Mongols, Tibetans, Manchus, and the Muslims (such as the Uyghurs), which together are symbolized by the Five Color Flag of the First Republic (1911–1928). This sense of nationalism is different from the idea of "ethnocentrism," which equates to the same meaning of nationalism in Chinese language. To achieve this he believed that China must develop a "national consciousness" so as to unite the Han in the face of imperialist aggression. He argued that "minzu", which can be translated as "people", "nationality" or "race", were defined by sharing common blood, livelihood, religion, language and customs.
Mínquán
The Principle of Mínquán is usually translated as "democracy"; literally "the People's power" or "government by the People." To Sun, it represented a Western constitutional government. He divided political life of his ideal for China into two sets of 'powers': the power of politics and the power of governance.
The power of politics are the powers of the people to express their political wishes, similar to those vested in the citizenry or the parliaments in other countries, and is represented by the National Assembly. There are four of these powers: election, recall,initiative and referendum These may be equated to "civil rights".
The power of governance are the powers of administration. Here he expanded the European-American constitutional theory of a three-branch government and a system of checks and balances by incorporating traditional Chinese administrative tradition to create a government of five branches (each of which is called a Yuan (院, yuàn, literally "court"). The Legislative Yuan, the Executive Yuan, and the Judicial Yuan came from Montesquieuan thought; the Control Yuan and the Examination Yuan came from Chinese tradition. (Note that the Legislative Yuan was first intended as a branch of governance, not strictly equivalent to a national parliament.)
Mínshēng
The Principle of Mínshēng is sometimes translated as "the People's welfare/livelihood," "Government for the People". The concept may be understood as social welfare and as a direct criticism of the inadequacies of both socialism and capitalism. Here he was influenced by the American thinker Henry George (see Georgism); the land value tax in Taiwan is a legacy thereof. He divided livelihood into four areas: food, clothing, housing, and transportation; and planned out how an ideal (Chinese) government can take care of these for its people. Sun died before he was able to fully explain his vision of this Principle and it has been the subject of much debate within both the Chinese Nationalist and Communist Parties, with the latter suggesting that Sun supported socialism.