Follow with me a 90-year-old man bent with the weight of his years; slow of step, with stooped and rounded shoulders. It is early morning, and he's in his home. We note that he sits down and picks up a cello. The man and the instrument merge. He plays for four or five hours.

When he plays, the years seem to fall off this special man who's 90 years old and still practicing. Why on earth would Pablo Casals, at age 90, continue to practice? Somebody asked him, and he said, "I practice because I have the impression I'm making a little progress."