Source: Computer Science as Empirical Inquiry: Symbols and Search (1975), p. 114.
“Only empirical work - analysis based on observation and experience as opposed to theory - can answer the question of how labor force behavior is affected by changes in the tax system. Even intense armchair speculation on this matter must be regarded with considerable skepticism.”
Source: Public Finance - International Edition - Sixth Edition, Chapter 2, Tools of Positive Analysis, p. 22
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Harvey S. Rosen 21
American economist 1949Related quotes

Attributed in American Quotations (1992) by Gorton Carruth and Eugene H. Ehrlich, p. 149
1990s
Source: Systemantics: the underground text of systems lore, 1986, p. 65 cited in "Quotes from Systemantics – Funny, But Scary Too" Posted on agileadvice.com March 3, 2006 by Mishkin Berteig. This quote was mentioned in General systemantics (1975, p. 71)

Source: Introduction to Systems Philosophy (1972), p. xix.
Source: "Differentiation and integration in complex organizations," 1967, p. 2

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Leaves of Morya’s Garden: Book Two: Illumination (1925)
“Organizational theory is based on a culture's answers to questions about the self.”
Danah Zohar (1997), Using the New Science to Rethink How We Structure and Lead Organizations. p. 96; cited in: Kathleen Manning (2013), Organizational Theory in Higher Education. p. 182.

BBC radio broadcast, March 28, 1949. http://www.joh.cam.ac.uk/library/special_collections/hoyle/exhibition/radio/ Reprinted in April 1949 in The Listener, a BBC magazine.
Ginker (1964) as cited in: S. Nassir Ghaemi (2009) The Rise and Fall of the Biopsychosocial Model. p. 24