Monday, November 4, 2013 7:21:30 PM
Hemingway, if he actually said this, stole (er, "borrowed") the quote from a guy named George Jean Nathan. Hemingway was only 24 years old in 1923 when Nathan wrote it, and he is unlikely to be the "friend" whom Nathan was referring to.
April 1923, The Smart Set, â€œRepetition Generaleâ€ by George Jean Nathan and H. L. Mencken, pg. 35, col. 2: Line 12
In the words of a friend of mine, I drink to make other people interesting.