The masculine principle he terms Logos ('the word', hence rationality, logic, intellect, achievement), and the feminine principle Eros… 'it is the function of Eros to unite what Logos has sundered'
Samuels provides the canonical post-Jungian formulation of Logos as the masculine principle of rational differentiation, held in necessary tension with Eros, while cautioning that both principles transcend anatomical sex.
, Jung and the Post-Jungians, 1985thesis