“Mathematicians tells us that it is easy to invent mathematical theorems which are true, but that it is hard to find interesting ones. In analyzing music or writing its history, we meet the same difficulty, and it is compounded by another. For whom is it interesting? To paraphrase a famous remark of Barnett Newman, musicology is for musicians what ornithology is for the birds.”
Source: The Frontiers of Meaning: Three Informal Lectures on Music (1994), Ch. 3 : Explaining the Obvious
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Charles Rosen 69
American pianist and writer on music 1927–2012Related quotes

The Dover Math and Science Newsletter http://www.doverpublications.com/mathsci/0516/d/ May 16, 2011
Source: 1970s, Economics As a Science, 1970, p. 97

“The philosophy of science is as useful to scientists as ornithology is to birds.”
Attributed to Feynman, many times, by the British historian of science Brian Cox.
Disputed and/or attributed

Source: after 2000, Doubt and belief in painting' (2003), pp. 96, note 31

Electronic Musician magazine, December 1986
Interviews

The Glass Bead Game (1943)
Context: The Glass Bead Game, formerly the specialized entertainment of mathematicians in one era, philologists or musicians in another era, now more and more cast its spell upon all true intellectuals. Many an old university, many a lodge, and especially the age-old League of Journeyers to the East, turned to it. Some of the Catholic Orders likewise scented a new intellectual atmosphere and yielded to its lure. At some Benedictine abbeys the monks devoted themselves to the Game so intensely that even in those early days the question was hotly debated — it was subsequently to crop up again now and then — whether this game ought to be tolerated, supported, or forbidden by Church and Curia.

“It is always of interest to know what strikes another human being as remarkable.”
Source: The Ministry of Fear

Richard Courant, "Mathematics in the Modern World", Scientific American, Vol 211, (Sep 1964), p. 42