Sascha Radetsky

American Ballet Theatre's rehearsal studios are at 890 Broadway, an old building where exposed pipes clank and hiss in uneven accompaniment to piano music. The high ceilings wear a toupee of dust. The wall paint peels like a newbie ballerina's toes.

Sir Kenneth MacMillan's version of 'Romeo and Juliet' is my favorite full-length ballet, Sergei Prokofiev's breathtaking score a favorite composition of music. As a student of martial arts, I loved drawing my sword in defense of my Capulet kin.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.

You couldn't get me to go travel around and sit in a hotel room again. I have no interest in doing that. So everybody's happy. I am, at 74. Some people like doing it, but I never was much for that, anyway. It's a lot of work. So the only thing I miss about all of it is the camaraderie of the tour, but that doesn't offset the rest of it.