http://www.brainyquote.com/quotes/quotes/o/ogdennash109366.html
Dorthy Parker did say “Pearls before Swine”, but the actual quote from the Bible is “Cast not pearls before swine”. When DP used it, she was entering a building with Clare Booth Luce, who deferred to DP, saying, “Age before beauty”. Dorthy graciously accepted and strode in saying “Pearls before swine.”
That's what I was thinking of when I picked the screen name.