Semiotics is a general theory of all existing languages... all forms of communication - visual, tactile, and so on... There is general semiotics, which is a philosophical approach to this field, and then there are many specific semiotics.
Umberto EcoIf Bush had read all the documents about the Russians and British in Afghanistan in the 19th century, he would have not done what he did in the 21st. He would have understood how difficult it was to control this territory. He probably didn't read them.
Umberto EcoFor such is the fate of parody: it must never fear exaggerating. If it strikes home, it will only prefigure something that others will then do without a smile--and without a blush--in steadfast virile seriousness.
Umberto Eco