Refers to the ideology that all human beings belong to a single community, often used in political or philosophical contexts.
He sympathizes with the idea of cosmopolitanism.
国際主義 (internationalism) emphasizes cooperation between nations, while 世界主義 (cosmopolitanism) focuses on transcending national identities.
Compound of 世界 (world) and 主義 (principle, -ism). The term is a direct translation of the Western concept of cosmopolitanism.