Mark Twain
Steve Jobs
Kahlil Gibran
Martin Luther King, Jr.
Napoleon Hill
Bill Gates
Sandeep Maheshwari
Paulo Coelho
Elbert Hubbard
Anaïs Nin
Helen Keller
Johann Wolfgang von Goethe
Richard Bach
Marcus Aurelius
George Bernard Shaw
Leonardo da Vinci
Stephen Hawking
Wayne Dyer
Gabriel García Márquez
Henry David Thoreau