(Number three is my personal favourite)
1 “He had delusions of adequacy.”
– Walter Kerr

2 “I have never killed a man, but I have read many obituaries with great pleasure.”
– Clarence Darrow

3 “He has never been known to use a word that might send a reader to the dictionary.”
– William Faulkner (about Ernest Hemingway)

4 “In order to avoid being called a flirt, she always yielded easily.”
– Charles, Count Talleyrand

5 “His mother should have thrown him away and kept the stork.”
– Mae West

6 “Some cause happiness wherever they go; others, whenever they go.”
– Oscar Wilde

7 “He uses statistics as a drunken man uses lamp-posts… for support rather than illumination.”
– Andrew Lang (1844-1912)

8 “I’ve had a perfectly wonderful evening. But I’m afraid this wasn’t it.”
– Groucho Marx