“In many ways it is true to say that syntax is mathematical logic, semantics is philosophy or philosophy of science, and pragmatics is psychology, but these fields are not really all distinct.”
Source: The Brain As A Computer (1962), p.42 as cited in: Sica Pettigiani (1996) La comunicazione interumana. p.48
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Frank Honywill George 9
British psychologist 1921–1997Related quotes

Quoted by Frederic Prokosch in Voices: A Memoir (1983)
“Mathematical activity has taken the forms of a science, a philosophy and an art.”
100 Years of Mathematics: a Personal Viewpoint (1981)
(1951, p. 14)
1950s, "What is Semantics?", 1950
““Pragmatism” is only a new term to designate “Opportunism” in philosophy.”
Anti-Pragmatism; an Examination into the Respective Rights of Intellectual Aristocracy and Social Democracy (1909), p. xv.

Two scientific activities are equally valid if they achieve results that are true. Now, how do you decide which activity is more valuable? The question of value is the basic question that the scientific administrator asks so that decisions can be made about funding priorities.
Interview http://www.ornl.gov/info/ornlreview/rev28-1/text/wbgbar.htm by Bill Cabage and Carolyn Krause for the ORNL Review (April 1995).

Variant translation: Philosophy is not a theory but an activity. A philosophical work consists essentially of elucidations. The result of philosophy is not a number of "philosophical propositions." but to make propositions clear.
Original German: Der Zweck der Philosophie ist die logische Klärung der Gedanken. Die Philosophie ist keine Lehre, sondern eine Tätigkeit. Ein philosophisches Werk besteht wesentlich aus Erläuterungen. Das Resultat der Philosophie sind nicht „philosophische Sätze“, sondern das Klarwerden von Sätzen. Die Philosophie soll die Gedanken, die sonst, gleichsam, trübe und verschwommen sind, klar machen und scharf abgrenzen.
1920s, Tractatus Logico-Philosophicus (1922)
Context: Philosophy aims at the logical clarification of thoughts. Philosophy is not a body of doctrine but an activity. A philosophical work consists essentially of elucidations. Philosophy does not result in 'philosophical propositions', but rather in the clarification of propositions. Without philosophy thoughts are, as it were, cloudy and indistinct: its task is to make them clear and to give them sharp boundaries. (4.112)

Of Studies
Essays (1625)
Source: The Collected Works of Sir Francis Bacon

Logical Atomism (1924)
1920s