Denis Waitley quotes (American motivational Speaker and Author of self-help books. b.1933)
Aristotle quotes (Ancient Greek Philosopher, Scientist and Physician, 384 BC-322 BC)
Bill Watterson quotes (American Author of the comic strip Calvin & Hobbes, b.1958)
Dave Barry quotes (American Writer and Humorist best known for his weekly newspaper column. b.1947)
Margaret J. Wheatley quotes
Seneca quotes (Roman philosopher, mid-1st century AD)
Thomas S. Szasz quotes (Hungarian psychiatrist and Professor of Psychiatry Emeritus at State University of New York Health Science Center in Syracuse, b.1920)
Scott Adams quotes (American Cartoonist, b.1957)
Billy Graham quotes (American evangelist, b.1918)