Lauri Anderson: "Talking about music is like dancing about
architecture."
When Laurie Anderson said that on a radio special promoting Home Of The Brave (I happen to have the vinyl) she attributed it to Steve Martin, which (surprisingly) is wrong. Nobody knows who said it first, but variations on it go back at least the turn of the LAST century.
That's why it has been attributed to everybody from Anderson to Zappa to various journalists; it's more of an "old saying" than a contemporary quote.