Philosopher Quotes and aphorisms about opportunity Confucius ,, A youth, when at home, should be filial and, abroad, respectful to his elders. He should be earnest... Sun Tzu Sun Tzu Deepak Chopra Francis Bacon Francis Bacon Rudolf Steiner ,, By giving material expression to force-forms in space, the Greeks gave divine spiritual beings the ... William James Baltasar Gracian John Dewey