What is truth then? A mobile army of metaphors, metonomies, anthropomorphisms, in short a sum of human relations that are elevated, transmitted, beautified in a poetic or rhetoric manner, and that appear to the people after a long usage as fixed, canonical and binding: truths are illusions of which one has forgotten they are illusions, metaphors that are worn out and literally became powerless, coins that lost their images and are now metal and no longer coins