translation: In fact, we now know that sex is complicated enough that we have to admit: Nature doesn't draw the line for us between male and female, or between male and intersex and female and intersex; we actually draw that line on nature.
translation: De hecho, ahora sabemos que el sexo es tan complicado que tenemos que admitir que la Naturaleza no traza una línea tajante entre hombres y mujeres o entre hombres e intersexuales y mujeres e intersexuales; somos nosotros quienes trazamos esa línea.