"What wild ecstacy": being in love -- Animal magnetism: love among the animals -- Chemistry of love: scanning the brain "in love" -- Web of love: lust, romance, and attachment -- "That first fine careless rapture": who we choose -- Why we love: the evolution of romantic love -- Lost love: rejection, despair, and rage -- Taking control of passion: making romance last -- "The madness of the Gods": the triumph of love -- Appendix.