The subject of the paper is open, but it must be related in some way to Marx's 1844 Economic and Philosophic Manuscriipts and his Theses on Feuerbach,
possibly in addition to Althusser's essay on Marxism and Humanism (https://www.marxists.org/reference/archive/althusser/1964/marxism-humanism.htm)
and Marx's "On the Jewish Question".