“…According to Descartes, the strength of the passions over the mind is a purely bodily issue (Macherey, 1999, p. 101): some physiologies are such that passions exert force over the pineal gland (where mind and body communicate) with particular strength; this presents a challenge to the will, which should exert itself to regain control over the supple and moveable pineal gland (Macherey, 1999, p. 106). For all his rationalism, Descartes gives primacy to the will in guaranteeing correct thought and action (Espinosa, 2015, pp. 548–550): it is ultimately the job of the will to enforce the dictates of reason upon the body.…”