"I have never killed a man, but I have read many obituaries with great pleasure."
  - Clarence Darrow

  "He has never been known to use a word that might send a reader to the dictionary."
  - William Faulkner (about Ernest Hemingway).
 
  "I didn't attend the funeral, but I sent a nice letter saying I approved of it."
  - Mark Twain

  "He has no enemies, but is intensely disliked by his friends."

  "I feel so miserable without you; it's almost like having you here."
  - Stephen Bishop
 
  "I've had a perfectly wonderful evening. But this wasn't it."
- Groucho Marx

The exchange between Churchill & Lady Astor
(who despised each other):
  She said, "If you were my husband, I'd poison your tea."
  He said, "And if you were my wife, I'd drink it."