The zenith of virtuosity, a violinist like Jascha Heifetz, the supernatural in a pianist like Vladimir Horowitz, these are performers who were so idiosyncratic and personal that to imitate them would be like filling somebody else's bottle with your wine.

The pieces that have survived, the ones that we all love, were not all popular in their time. Just look at Beethoven's late string quartets. The music that the musical community selects, however, is usually the very best.

A lot of my musical education was done simply by listening. If you really want to excel on your instrument, it's almost impossible to not develop and analyze what you see and hear and to incorporate all of it into your own playing.

If I were to run around the world playing just the cello concertos - and believe me, I love playing them - I would be counting my entire repertoire from year to year on my two hands.

I would say that for the younger musicians, technical proficiency is necessary and a given these days. But the study and the way you function in society, your beliefs and the way you live, that is where you will find a real musician, a real artist.

When I finally got together with Rostropovich as a student, he was very focused, almost entirely focused on the music itself, on what the composer had in mind and what he knew about the composer. Many of the works that I played for him had in fact been composed and written for him; he was often the first performer of these works, having known the composers personally.

Our interpretations through the years and generations have always changed, but the emotions, ideas, and the thoughts of the composers are still with us, and these are the premise of the music. The time factor has little to do with it because, after all, it is about human feeling, the Universe and who we are as people.