Bill Cosby

"A word to the wise ain't necessary, it's the stupid ones who need the advice."

- Bill Cosby, comedian, actor, author, musician

Francois de la Rochefoucauld

"Good advice is something a man gives when he is too old to set a bad example."

- Francois de La Rochefoucauld, author

Publilius Syrus

"Many receive advice, few profit by it."

- Publilius Syrus, ancient Roman writer

Abigail Van Buren

"The best index to a person's character is a) how he treats people who can't do him any good and b) how he treats people who can't fight back."

- Abigail Van Buren, advice columnist

Erica Jong

"Advice is what we ask for when we already know the answer but wish we didn't."

- Erica Jong, author

Abigail Van Buren

"People who fight fire with fire usually end up with ashes."

- Abigail van Buren, pseudonym of Pauline Phillips, advice columnist