It is necessary to distinguish between useful thing, thing and work of art. What surrounds us in the optics of a "for" points at the totality of useful things. Thing is what we talk about. Even though the relationships between useful thing and thing are narrow, it is possible to talk about the things that surround from perspectives that are not restricted to the optics of "for". A thing is not restricted to be for something. A work of art has a singular type of presence; it is not there but for those who, on their side, are expressly open to her. The origin of the work of art is the truth. It must not be understood as the adequacy of what we say to what it is in reality. Heidegger invites to listen to the greek name of truth -aletheia. 'A lambda eta theta epsilon iota alpha [aletheia] makes you pay attention to the privative alpha and the theme deriving from the verb lambda alpha nu theta alpha nu omega. [lanthano]: escape.