Marcus Tullius Cicero quotes (Ancient Roman Lawyer, Writer, Scholar, Orator and Statesman, 106 BC-43 BC)
Thomas S. Szasz quotes (Hungarian psychiatrist and Professor of Psychiatry Emeritus at State University of New York Health Science Center in Syracuse, b.1920)
Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)
Persian Proverb quotes
Johann Wolfgang von Goethe quotes (German Playwright, Poet, Novelist and Dramatist. 1749-1832)
