Niccolò Machiavelli / Elizabeth Towne / Elbert Hubbard / James Allen / William Walker Atkinson / Orison Swett Marden / Ralph Waldo Trine / Benjamin Franklin / William Crosbie Hunter / Harry A. Lewis / Thorstein Veblen / Kahlil Gibran / P. T. Barnum / Marcus Aurelius / Wallace D. Wattles / Lao Tzu / Russell Conwell / Henry Harrison Brown / Florence Scovel Shinn / Napoleon Hill / Émile Coué / Charles Fillmore / Charles F. Haanel / B. F. Austin / Robert Collier / George Matthew Adams / Genevieve Behrend / George S. Clason | 