About this image

"Not unreasonable is the vulgar proverb: Whom is not jealous, he does not love."
[Non enim frustra vulgo dici solet: Qui non zelat, non amat.]
Saint Augustine, Book against Manicheans (Contra Adimantum), Chapter 13, #2.

Kainé: But now, I have this strange feeling like... Like somehow they're not all bad.

"Two are fun and four are better, give more, get more and let variety be the spice of life." 
[Más pueden dos, y más cuatro, y más dan y más tienen, y más hay en qué escoger.] 
Fernando de Rojas, Celestina (Comedia de Calisto y Melibea), Chapter 7, trans. Peter Bush, 1499.