Numbers 2, 7, 10, 14, 16, 17, 18, 21, 24, 27 and 28 appeal to me, but as this isn't Flame I shall refrain from connecting them to specific esteemed members.

1. "He has all the virtues I dislike and none of the vices I admire."
-- Winston Churchill

2. "A modest little person, with much to be modest about."
-- Winston Churchill

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

4. "He has never been known to use a word that might send a reader to the dictionary."
-- William Faulkner (about Ernest Hemingway)

5. "Poor Faulkner. Does he really think big emotions come from big words?"
-- Ernest Hemingway (about William Faulkner)

6. "Thank you for sending me a copy of your book; I'll waste no time reading it."
-- Moses Hadas

7. "He can compress the most words into the smallest idea of any man I know."
-- Abraham Lincoln

8. "I've had a perfectly wonderful evening. But this wasn't it."
-- Groucho Marx

9. "I didn't attend the funeral, but I sent a nice letter saying I approved of it."
-- Mark Twain

10. "He has no enemies, but is intensely disliked by his friends."
-- Oscar Wilde

11. "I am enclosing two tickets to the first night of my new play, bring a friend... if you have one."
-- George Bernard Shaw to Winston Churchill

12. "Cannot possibly attend first night, will attend second... if there is one."
-- Winston Churchill, in response

13. "I feel so miserable without you, it's almost like having you here."
-- Stephen Bishop

14. "He is a self-made man and worships his creator."
-- John Bright

15. "I've just learned about his illness. Let's hope it's nothing trivial."
-- Irvin S. Cobb

16. "He is not only dull himself, he is the cause of dullness in others."
-- Samuel Johnson

17. "He is simply a shiver looking for a spine to run up."
-- Paul Keating

18. "He had delusions of adequacy."
-- Walter Kerr

19. "There's nothing wrong with you that reincarnation won't cure."
-- Jack E. Leonard

20. "He has the attention span of a lightning bolt."
-- Robert Redford

21. "They never open their mouths without subtracting from the sum of human knowledge."
-- Thomas Brackett Reed

22. "He inherited some good instincts from his Quaker forebears, but by diligent hard work, he overcame them."
-- James Reston (about Richard Nixon)

23. "In order to avoid being called a flirt, she always yielded easily."
-- Charles, Count Talleyrand

24. "He loves nature in spite of what it did to him."
-- Forrest Tucker

25. "Why do you sit there looking like an envelope without any address on it?"
-- Mark Twain

26. "His mother should have thrown him away and kept the stork."
-- Mae West

27. "Some cause happiness wherever they go; others, whenever they go."
-- Oscar Wilde

28. "He uses statistics as a drunken man uses lamp-posts... for support rather than illumination."
-- Andrew Lang (1844-1912)

29. "He has Van Gogh's ear for music."
-- Billy Wilder