Romantic love has worked two astounding miracles. We have seen how,
with the aid of five of its ingredients--sympathy, adoration,
gallantry, self-sacrifice, and affection--it has overthrown the
Goliath of selfishness. We shall now see how it has overcome another
formidable foe of civilization--sensualism--by means of two other
modern ingredients, one of which I will call mental purity (to
distinguish it from bodily purity or chastity) and the other
_esthetic_ admiration of personal beauty.