Karl Marx
Arnold Bennett
Adam Smith
Karl Marx and Friedrich Engels
Alfred Marshall
Stephen Leacock
John Stuart Mill
Russell Herman Conwell
P.T. Barnum
Jack London
Timothy S. Arthur
Mrs. Isabella Beeton
Frederic Bastiat
John Ruskin
Louis D. Brandeis
Thomas R. Malthus
Hilaire Belloc
Oscar Wilde
Lysander Spooner
Leo Tolstoy
Thorstein Veblen
Jane Addams
Samuel Merwin
Frédéric Bastiat
Francis Bacon
H. G. Wells
Various
Richard W. Church
Margaret Sanger
Theodor Herzl
Sarah Orne Jewett
John R. Lynch
John Maynard Keynes
Henry Hazlitt
Plato
Pierre-Joseph Proudhon
William Morris
Samuel Merwin and Henry Kitchell Webster
Orison Swett Marden
Roger Babson
Frances Swain
Unknown
Cornelia Stratton Parker
Aristotle
Henry George