Looking for a romantic gift for that special someone? I highly recommend that you do not get them a copy of the twelfth-century treatise On Love by Andreas Capellanus, because your intended sweetheart is going to have misgivings about your liaison once he or she reads the first page. Here Andreas explains what love is, namely “a certain innate suffering caused by seeing, and thinking too much about, the shapeliness of someone of the opposite sex.”