 In an Epilogue to Eros and Civilization entitled “Critique of Neo-Freudian Revisionism”, Marcuse accuses several prominent psychoanalysts of revising Freud’s work in such a way that it is purged of its critical implications. These revisionists use psychoanalysis to develop a conformist psychology rather than a critical one. This led to an open debate between Marcuse and a former member of the Institute, Erich Fromm. The debate took place in the mid 1950s in the journal Dissent.  Marcuse believed that Fromm and others had rejected some of Freud’s key insights such as his libidinal theory, the death instinct, the Oedipus complex, the primal horde of patricides, etc.