Love is hungry and severe. Love is not unselfish or bashful or servile or gentle. Love demands everything. Love is not serene, and it keeps no records. Love sometimes gives up, loses faith, even hope, and it cannot endure everything. Love, sometimes, ends. But its memory lasts forever, and forever it may come again. There are three things that will beggar the heart and make it crawl - faith, hope and love - and the cruelest of these is love.
—  Catherynne M. Valente, The Habitation of the Blessed