"Love conquers all"
This little phrase was engraved on the broach that the Prioress wore in Chaucer's Canterbury Tales. It is taken initially from Vergil's Eclogues X, 69 .
vincit amor et nos cedamus amori
love conquers all; let us too, yield to love!
It is sometimes quoted as being "Labor vincit omnia", the translation of which is quite obvious, indeed this version, and some variations, are used as mottos by schools, companies and towns.
It is the title of a painting by Caravaggio, which I absolutely abhor which contains a naked image of cupid. I know nothing about art or art history, so I'll leave that to someone who does.