“The greatest thing you’ll ever learn is just to love and be loved in return.”

Eden Ahbez (songwriter)

It is perhaps the biggest of all understatements to say that love is an interesting and complex topic. Love is the central theme in countless paintings, sculptures, poems, movies and songs. It is the central motivating factor in much human behaviour. Despite being ubiquitous and nearly universally felt, it is one of the central mysteries of the human condition. What makes us fall in love? Why might love fade over time?