William J. H. Boetcker quotes
Aristotle quotes (Ancient Greek Philosopher, Scientist and Physician, 384 BC-322 BC)
Persian Proverb quotes
Lao Tzu quotes (Chinese taoist Philosopher, founder of Taoism, wrote "Tao Te Ching" (also "The Book of the Way"). 600 BC-531 BC)
Og Mandino quotes (American Essayist and Psychologist, 1923-1996)
Confucius quotes (China's most famous teacher, philosopher, and political theorist, 551-479 BC)
Kahlil Gibran quotes (Lebanese born American philosophical Essayist, Novelist and Poet. 1883-1931)
