Share on Facebook Share on Twitter Comment on this quote Share via Email Print this Page Bill Cosby Quote “I don't know the key to success, but the key to failure is trying to please everybody.” ~ Bill Cosby Wisdom , Black Ratings and Comments Reply Anonymous 2/17/08 SaveOk2 SaveOk2 View CommentsClick to view or comment. Share on Facebook Tweet Email Print This Bill Cosby quote is found in these categories: Wisdom quotes Black quotes About Bill Cosby Bio of Bill Cosby Quotations by Bill Cosby Books by/about Bill Cosby Bill Cosby videos Bill Cosby on Wikipedia Astrological chart for Bill Cosby