„The advantages of models are, on one hand, that they force us to present a "complete" theory by which I mean a theory taking into account all relevant phenomena and relations and, on the other hand, the confrontation with observation, that is, reality.“

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Jan Tinbergen1
1903 - 1994
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„I define Inner Space as an imaginary realm in which on the one hand the outer world of reality, and on the other the inner world of the mind meet and merge.“

—  J. G. Ballard British writer 1930 - 2009
Context: I define Inner Space as an imaginary realm in which on the one hand the outer world of reality, and on the other the inner world of the mind meet and merge. Now, in the landscapes of the surrealist painters, for example, one sees the regions of Inner Space; and increasingly I believe that we will encounter in film and literature scenes which are neither solely realistic nor fantastic. In a sense, it will be a movement in the interzone between both spheres. As quoted in ‘Interview with J. G. Ballard’, Munich Round Up, 100 (1968), with translation by Dan O’Hara http://www.ballardian.com/munich-round-up-interview-with-jg-ballard

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„Nevertheless, there remains still in the new kind of theory an objective reality, inasmuch as these theories deny any possibility for the observer to influence the result of a measurement, once the experimental arrangement is chosen.“

—  Wolfgang Pauli Austrian physicist, Nobel prize winner 1900 - 1958
Context: In the new pattern of thought we do not assume any longer the detached observer, occurring in the idealizations of this classical type of theory, but an observer who by his indeterminable effects creates a new situation, theoretically described as a new state of the observed system. In this way every observation is a singling out of a particular factual result, here and now, from the theoretical possibilities, therefore making obvious the discontinuous aspect of physical phenomena. Nevertheless, there remains still in the new kind of theory an objective reality, inasmuch as these theories deny any possibility for the observer to influence the result of a measurement, once the experimental arrangement is chosen. Therefore particular qualities of an individual observer do not enter into the conceptual framework of the theory. "Matter" in Man's Right to Knowledge, 2nd series (1954), p. 10; also in Writings on Physics and Philosophy‎ (1994) edited by Charles Paul P. Enz and Karl von Meyenn

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