Original: Eugene Muntz, Leonardo da Vinci Artist, Thinker, and Man of Science (1898), quoted at Leonardo da Vinci's Ethical Vegetarianism Leonardo had many friends who are now renowned either in their fields or for their historical significance.
Simplified: Eugene Muntz, Leonardo da Vinci Artist, Thinker, and Man of Science (1898), quoted at Leonardo da Vinci's Ethical Vegetarianism Very little is known about Leonardo's life and work between 1472 and 1481.