Saint Thomas states with characteristic succinctness: ‘Semen mulieris non est de necessitate conceptionis,’ because female seed ‘nihil facit ad generationem.’ Female exudate is an imperfect analogue to male semen.
Hillman demonstrates how Aquinas’s formal denial of the necessity of female seed to conception encodes a philosophical subordination of the feminine that saturates the biological theory of reproduction with patriarchal cosmology.
, The Myth of Analysis: Three Essays in Archetypal Psychology, 1972thesis