... there is no such thing as a rational world and a separate irrational world, but only one world containing both.
(Robert Musil (1880-1942), Austrian author. Literati and Literature. Marginal Glosses, first published in Die Neue Rundschau (Sept. 1931), Robert Musil, Precision and Soul. Essays and Addresses, p. 88, ed. and trans. by Burton Pike and David S. Luft, Chicago: University of Chicago Press (1990).)
I had the idea that there were two worlds. There was a real world as I called it, a world of wars and boxing clubs and children's homes on back streets, and this real world was a world where orphans burned orphans.... I liked the other world in which almost everyone lived. The imaginary world.
(Norman Mailer (b. 1923), U.S. author. Sergius O'Shaugnessy, in The Deer Park, ch. 6, Putnam's (1955).)
If we call the world of "things"Mof physical objectsthe first world, and the world of subjective experiences (such as thought processes) the second world, we may call the world of statements in themselves the third world.
(Karl Popper (1902-1994), Austrian born-British philosopher of science. Unended Quest, p. 181 (1976). Originally published in The Library of Living Philosophers: The Philosophy of Karl Popper, "Autobiography of Karl Popper," ed. P. Schilpp (1974).
The famous distinction by which the author defends logic, semantics, etc., against psychologism.)