The issue on whether the epistemological view of Engels and the Marxists can be identified to Marx opens the question on what Marx’s actual view on knowledge. This debate on Marx’s epistemology is divided between realist and idealist interpretation of his texts: the former reads that for Marx knowledge is a copy of an independent reality existing outside of man, while the latter views that for the same philosopher, knowledge is in some sense constructed by the subject. This study contributes (...) to the discussion by closely reading the epistemology of the Economic and Philosophic Manuscripts of 1844. The Manuscripts contain important epistemological remarks that are subject of scholarly debate. The scope of the study aims to read the texts on their own terms, and through that, avoid the reductive readings of Marx that plague his interpretations. Through this approach, this study argues that Marx in the Manuscripts conveys an idealist epistemology based on his concept on how human need shapes human cognition. Marx further develops this idealism in the texts in his critique of political economy, where he shows that this science is grounded on the estranged need. In the end, this study underscores that the Manuscripts’ idealism shows a part in Marx’s thinking that underlines the role cognition plays to address forms of estrangements brought by the structures of private property. It highlights how Marx empowers man as capable of resolving the estrangements in the society through the development of both action and cognition. (shrink)