Midway through Walter Isaacson's luminous new biography, Leonardo Da Vinci, the artist of rising reputation moves from Milan to Florence, and in 1502 agrees to meet the warlord Cesare Borgia
The method to achieving what seemed like a superhuman feat was called the Dymaxion sleeping schedule: four naps of 30 minutes taken every six hours. such as the life of Leonardo da Vinci, to
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leonardo da vinci daily schedule
