 In his “Theses on Feuerbach” (1845) Marx provides a background to what would become his theory of history by stating his objections to “all hitherto existing” materialism and idealism, understood as types of philosophical theories. Materialism is complimented for understanding the physical reality of the world, but is criticised for ignoring the active role of the human subject in creating the world we perceive. Idealism, at least as developed by Hegel, understands the active nature of the human subject, but confines it to thought or contemplation: the world is created through the categories we impose upon it. Marx combines the insights of both traditions to propose a view in which human beings do indeed create —or at least transform—the world they find themselves in, but this transformation happens not in thought but through actual material activity; not through the imposition of sublime concepts but through the sweat of their brow, with picks and shovels. This historical version of materialism, which, according to Marx, transcends and thus rejects all existing philosophical thought, is the foundation of Marx’s later theory of history. As Marx puts it in the “1844 Manuscripts”, “Industry is the actual historical relationship of nature … to man” (MECW 3: 303). This thought, derived from reflection on the history of philosophy, together with his experience of social and economic realities, as a journalist, sets the agenda for all Marx’s future work.