Robert Green Ingersoll quotes (American Statesman and Orator, noted for his broad range of culture and his defense of atheism. 1833-1899)
Buddha quotes (Hindu Prince Gautama Siddharta, the founder of Buddhism, 563-483 B.C.)
Chinese Proverbs quotes
William Arthur Ward quotes (American dedicated scholar, author, editor, pastor and teacher)
Dr. Laurence J. Peter quotes (American "hierarchiologist", Educator and Writer, 1919-1990)
Ralph Waldo Emerson quotes (American Poet, Lecturer and Essayist, 1803-1882)
German Proverb quotes
Elliott Larson quotes
Tom Gates quotes
Marcus Aurelius quotes (Roman emperor, best known for his Meditations on Stoic philosophy, AD 121-180)