text:  If this influence of our sensations is not owing to moral causes how is it that we are so sensitive where a barbarian would feel nothing? How is it that our most touching airs would be but so much empty noise to the ear of a Carribee? All require the kind of melody whose phrases they can understand; to an Italian his country's airs are necessary; to a Turk a Turkish melody; each is affected only by those accents with which he is familiar