Aristotle quotes (Ancient Greek Philosopher, Scientist and Physician, 384 BC-322 BC)
Voltaire quotes (French Philosopher and Writer. One of the greatest of all French authors, 1694-1778)
Mark Twain quotes (American Humorist, Writer and Lecturer. 1835-1910)
Thomas Carlyle quotes (Scottish Historian and Essayist, leading figure in the Victorian era. 1795-1881)
Ray Bradbury quotes (American science-fiction short stories and novels writer,1920)
E. F. Schumacher quotes (German born British Economist and Founder of the Intermediate Technology Development Group (1966). 1911-1977)
