Short Answer 
Sun Yat-sen sought to promote national unity and pride among Chinese citizens by eliminating foreign influences and advocating for his political ideology, the Three Principles of the People, which emphasized nationalism, democracy, and people’s livelihood. He also recognized the importance of economic development in fostering a sense of belonging and enhancing the living standards of the populace.
Step 1: Promote Unity
Sun Yat-sen aimed to instill a sense of national pride among the Chinese people. He believed that uniting China without foreign domination was essential for the country’s progress. By advocating for a united nation, he sought to eliminate external influences that undermined Chinese identity.
Step 2: Introduce the Three Principles
He developed a political ideology known as the Three Principles of the People, which included nationalism, democracy, and people’s livelihood. Each principle served to empower citizens and strengthen national identity. This framework was crucial in encouraging the populace to participate actively in shaping their country’s future.
Step 3: Foster Economic Development
Sun Yat-sen understood that a strong economy was key to national pride and unity. He emphasized the need for economic growth that would improve the living standards of the people. By promoting prosperity, he believed that citizens would have a greater sense of belonging and pride in being part of a thriving nation.