The writer behind "The Dark Knight" trilogy, "Man of Steel," "Call of Duty: Black Ops" and the new Starz series "Da Vinci’s Demons," credits a rigorous schedule and daily meditation with his multitasking successes. Leonardo da Vinci painted the Mona Lisa and The Last Supper, conceived of the helicopter and developed a rudimentary theory of plate tectonics (among many other things) making him one of the most famous figures in history.