[kenperkins]

This has been addressed on http://quoteinvestigator.com/2013/03/06/artists-steal/

tl;dr:

In conclusion, in 1892 an important precursor of this family of expressions was published. The author was W. H. Davenport Adams, and his words may have influenced the version that T. H. Eliot published in 1920.

[andrewflnr]

How delightfully meta.

[Samuel_Michon]

“How to properly plagiarize a quote”