"Platonic love"
1911 edition of the Encyclopedia Britannica. http://66.1911encyclopedia.org/P/PL/PLATONIC_LOVE.htm
"PLATONIC LOVE, a term commonly applied to an affectionate relation
between a man and a woman into which the sexual element does not
enter. The term in English goes back as far as Sir William Davenant's
Platonic Lovers (1636). It is derived from the conception,
in Plato's Symposium, of the love of the idea of good which lies
at the root of all virtue and truth. Amor platonicus was used,
e.g. by Marsilio Ficino (isth century), as a, synonym for amor
socraticus, referring to the affection which subsisted between
Socrates arid his pupils."
