Sociology is the scientific study of human society and social behavior. It examines how social factors influence behavior and how people interact within groups and institutions. The document outlines the key perspectives in sociology - functionalism, which sees society as a system of interconnected parts that function to maintain stability; conflict theory, which views social life as groups competing for power and resources; and symbolic interactionism, which focuses on how people interpret symbols and meanings through social interaction. It traces the origins and early thinkers in sociology like Comte, Marx, Durkheim, and Weber who made important contributions to the field.