Semiotics is in principle the discipline studying everything which can be used in order to lie. If something cannot be used to tell a lie, conversely it cannot be used to tell the truth: it cannot in fact be used "to tell" at all.
Umberto EcoWe know that sensory phenomena are transcribed in the photographic emulsion in such a way that even if there is a causal link with the real phenomena, the graphic images can be considered as wholly arbitrary with respect to these phenomena.
Umberto EcoI write stories about conspiracies and paranoid characters while I am, in fact, a very skeptical person.
Umberto Eco