Away from the camera, he guarded his privacy, preferring work over spectacle, craft over celebrity. He aged on screen without vanity, letting every crease and hesitation deepen the people he played. In an industry obsessed with reinvention, Duvall chose constancy: show up, know the lines, tell the truth. Now that he is gone, his performances remain—quiet, stubborn proof that honesty, delivered without fireworks, can shake the world.