"No coloratura or fioritura was ever done for its own sake — it was always at the service of some expressive challenge....Her runs always gave the impression of being done so effortlessly. I liken it to the greatest ballerinas — they never made you aware of how painful it is to be en pointe. Callas transcended and transformed pain and difficulty into sheer weightlessness and ease and joy. It's absolute perfection in itself, and then on top of that she overlays expression — that's the thing I adored about this singer. She must have spent hours, days, weeks, years on this art, you know? The one I'm floored by is the Entführung that she did. ["Martern aller Arten"] is just beyond belief. I don’t think anyone has sung it better...."