The composer is seldom a great theorist; the theorist is never a great composer.
 Samuel Butler, The Note-Books of Samuel Butler (1912). copy citation

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Author Samuel Butler
Source The Note-Books of Samuel Butler
Topic composer
Date 1912
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/6173/6173-h/6173-h.htm

Context

“We see that both musicians or painters with great command of technique seldom know what to do with it, while those who have little often know how to use what they have. Action and Study These things are antagonistic. The composer is seldom a great theorist; the theorist is never a great composer. Each is equally fatal to and essential in the other. Sacred and Profane Statues I have never seen statues of Jove, Neptune, Apollo or any of the pagan gods that are not as great failures as the statues of Christ and the Apostles.” source