Abstract 

　　Centered on two new collections recently published in China, Collected Works of Marx and Engels and Thematic Collection of Lenin, this article elaborates on fi ve key issues of theoretical concern: it emphasises the importance of being revolutionists and builders like Marx and Lenin, clarifi es that the two collections are scientifi c tools of knowledge, and discusses important theoretical questions such as the union of workers and oppressed nations of the world, socialism as the abolition of classes and the elimination of exploitation, and the communist party as the leader and organiser of the proletariat. 

　　Keywords 

　　Marxism–Leninism; working-class party; International Communist Movement; elimination of exploitation and class  

　　From: World Marxist Review 2024 1 (1) 

　　Editor: Wang Yi