"The magic of a Callas is a quality few artists have, something special, something different. There are many very good artists, but very few who have that sixth sense, the additional, the plus quality. It is something which lifts them from the ground: they become like semi-gods. She had it. Nureyev has it, [Laurence] Olivier. But Olivier is also a case of an extremely rich knowledge of everything. He is completely coherent in his life, onstage. Whatever he does is part of a complete personality. Maria is a common girl behind the wings, but when she goes onstage, or even when she talks about her work or begins to hum a tune, she immediately assumes this additional quality. For me, Maria is always a miracle. you cannot understand or explain her. You can explain everything Olivier does because it is all part of a professional genius. But Maria can switch from nothing to everything, from earth to heaven. What is it this woman has? I don't know, but when that miracle happens, she is a new soul, a new entity."