General semantics:
  Philosophical introduction
  Internal and external reality
  The opposition to reality
  Word and object - indicative words
  The ladder of abstractions
  The ladder of abstractions, diagram
  The anthropological abstraction ladder
  The abstractions of observation
  The parable of Red-Eye
  The parable of A-town and B-ville
  Orwell on General Semantics
  Gardner's criticism: analysis