Abner Bayley, Benjamin Franklin, B.f. Austin, Charles F. Haanel, Dale Carnegie, Douglas Fairbanks, Florence Scovel Shinn, H.a. Lewis, Henry H. Brown, Henry Thomas Hamblin, James Allen, Joseph Murphy, Khalil Gibran, Lao Tzu, L.w. Rogers, Marcus Aurelius, Napoleon Hill, Orison Swett Marden, P.t. Barnum, Ralph Waldo Emerson, Russell H. Conwell, Samuel Smiles, Sun Tzu, Wallace D. Wattles, William Atkinson, William Crosbie Hunter