Thus, even to the end of his life Mac displayed the independence of thought, confidence in his own judgment, and plain common sense that characterized his life. In my obituary at Mac's funeral, I referred to him as a "Prince of a Man." Mac was one of the most highly respected scientist/engineers to have worked at ORNL. He led an exemplary, fulfilled life—and his passing leaves a deep sense of loss in his many admirers who appreciated his unusual qualities of judgment and wisdom.