The central theme of Miles Davis's life was his restless determination to break boundaries and live life on his own terms. It made him a star—it also made him incredibly difficult to live with. Again and again, in music and in life, Miles broke with convention—and when he thought his work came to represent a new convention, he changed it again. His bold disregard for tradition, clarity of vision, relentless drive, and constant thirst for new experiences made him an inspiring collaborator and a cultural icon to generations of listeners.