Denis Waitley quotes (American motivational Speaker and Author of self-help books. b.1933)
G. B. Stern quotes (British novelist)
Bill Cosby quotes (American Actor, Comedian and Producer. b.1937, Philadelphia, Pennsylvania, USA)
Alyce P. Cornyn-Selby quotes (American manager and author)
Don Marquis quotes (American Writer, Columnist, Novelist, Playwright and Poet, 1878-1937)
Napoleon Hill quotes (American author, 1883-1970)
