Abraham Maslow Dale Carnegie Stephen Covey Tom Gilady Niza Eyal Ngakpa Chogyam Laura Slessinger Ram Oren Laura Schlessinger Covey Nestor Capoeira Anthony Robbins Peter Drucker Ricardo Semler Andre Kukla Sophia Mello Breyner Andresen Al Berto Jo Soares Dowling David Bach Kushner Sophia De Mello Breyner Robert Kiyosaki Malcolm Gladwell Mark Victor Hanson Robert Allen Zig Zigler Machado De Assis Max Lucado Scott Adams Arthur Clarke Freud Jostein Gaarder Dave Barry Wolfgang Hohlbein Carl Sagan Paulo Coelho Ayn Rand Albert Camus Isaac Asimov