Who are the authors of these quotes??

Question

(Once again...this is not homework..just a little Yahoo fun on a cloudy day.)

1."Be courteous to all, but intimate with few, and let those few be well tried before you give them your confidence. True friendship is a plant of slow growth, and must undergo and withstand the shocks of adversity before it is entitled to the appellation."
2. "Forgive your enemies, but never forget their names. "
3. "The best way to keep children home is to make the home atmosphere pleasant--and let the air out of the tires."
4. "We need never be ashamed of our tears. "
5. "An onion can make people cry, but there has never been a vegetable invented to make them laugh. "
6. "From the moment I picked up your book until I laid it down, I was convulsed with laughter. Some day I intend reading it. "

Answer 1

1) George Washington
2) John F Kennedy
3) Dorothy Parker
4) Charles Dickens
5) Will Rogers
6) Groucho Marx

Answer 2

George Washington
John F. Kennedy
Dorothy Parker
Charles Dickens
Will Rogers
Groucho Marx