EN
The paper offers a reconstruction of the development of Karl Marx's thought in 1842 - 1844 proceeding from the philosophy of law and social philosophy to political economy and its critique. It puts forward a new interpretation of the categories 'bürgerliche Gesellschaft', 'alienation' and 'alienated labour'. This interpretation shows that the development of Marx's thought did not proceed from 'philosophy' to 'political economy' or from 'humanism' to 'scientism', but from an 'external' to an 'internal' critique of political economy.