“What then is truth?  A mobile army of metaphors, metonyms, and anthropomorphisms – in short, a sum of human relations, which have been enhanced, transposed, and embellished poetically and rhetorically, and which after long use seem firm, canonical, and obligatory to a people:  truths are illusions about which one has forgotten that this is what they are; metaphors which are worn out and with sensuous power; coins which have lost their pictures and now matter only as metal, no longer as coins.” (Nietzsche, F. W. (1954), “On Truth and Lies in an Extra-Moral Sense”)