Source: Exploring the Crack In the Cosmic Egg (1974), p. 100-101
“The bulk of the world’s knowledge is an imaginary construction.”
The Five-sensed World (1910)
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Helen Keller 156
American author and political activist 1880–1968Related quotes

“I'm creating an imaginary — it's always imaginary — world in which I would like to live.”
Quoted in interview, The Paris Review (Fall 1965)
Context: You know, they ask me if I were on a desert island and I knew nobody would ever see what I wrote, would I go on writing. My answer is most emphatically yes. I would go on writing for company. Because I'm creating an imaginary — it's always imaginary — world in which I would like to live.

von Glasersfeld, 1987
Stuart A. Umpleby (1994) The Cybernetics of Conceptual Systems http://www.itk.ntnu.no/ansatte/Gulbrandsoey_Kenneth/documents/papers/THE%20CYBERNETICS%20OF%20CONCEPTUAL%20SYSTEMS.pdf. p. 3

“The real world is much smaller than the imaginary”

Astronomical Observations relating to the Construction of the Heavens... (1811)

Luhmann (1991) “Wie lassen sich latente Strukturen beobachten?,” in Paul Watzlawick, Peter Krieg (eds.), Das Auge des Betrachters: Beiträge zum Konstruktivismus. Festschrift für Heinz von Foerster, Piper, München-Zürich, p. 71; cited in: Heinz von Foerster (1993) " For Niklas Luhmann: “How Recursive is Communication?” http://e1020.pbworks.com/f/fulltext-2.pdf". Translated by Richard Howe.