关键词: 社会关系, 人的本质, 物质生产, 经济结构, 社会形态

Abstract: Marx's questioning of human nature finally settles on social relations. How do social relations come into being? Starting from material production, historical materialism objectively reveals the social nature of human beings, and presents a triple extension from individual subject to national subject, from direct life to all life, and from the existence outside consciousness to the existence of consciousness. To deepen the understanding of social relations with production relations, “the sum total of these relations of production constitute the economic structure of society”, which fundamentally determines people's social relations and human nature. Based on a series of concepts such as material production, social relations, production relations, and economic structure, historical materialism has discovered the development law of human social history. 

Key words: social relations, human nature, material production, economic structure, social form