 Critique offers a systematic attempt to justify these two perspectives and render them compatible. In broad terms, some of the main steps needed to effect such a synthesis are clear, most notably to deny or limit strong structuralist and determinist versions of Marxism. Borrowing some themes from Merleau-Ponty’s Humanism and Terror, Sartre maintained that any genuinely dialectical method refuses to reduce; it refuses scientific and economic determinism that treats humans as things, contrary to reductive versions of Marxism. He pithily puts his objection to such explanations in terms of what we might today call the genetic fallacy. Sartre says, 