I don’t think you can go past her snappy comebacks:

Told that Calvin Coolidge had died:
How can they tell?

Told that a talkative friend was outspoken:
By whom?

Told that Clare Boothe Luce was kind to her inferiors:
Where does she find them?

Clare Boothe Luce, meeting Parker at a doorway: Age before beauty
Dorothy Parker as she went in ahead: Pearls before swine.

Here’s a collection of her classic quotes