A map is not the territory it represents, but, if correct, it has a similar structure to the territory, which accounts for its usefulness.
— Alfred Korzybski, Science and Sanity, p. 58.
The map is not the territory, the word is not the thing it describes. Whenever the map is confused with the territory, a ‘semantic disturbance’ is set up in the organism. The disturbance continues until the limitation of the map is recognized.
— Alfred Korzybski