It is becoming increasingly difficult to obtain the services of first-class conductors. They are sick and tired of dealing with singers, as I am.

How nice the human voice is when it isn't singing.

Expressions of disapproval are on a level of vulgarity that cannot be tolerated. The way to express disapproval is to do without applause.

I will not enter into a public feud with Madame Callas, since I am well aware that she has considerably greater competence and experience at that kind of thing than I have.

Confine your kissing to the irresistible.

Miss Renata Tebaldi was always sweet and very firm... she had dimples of iron.

I never for a moment believed they would perform at 10 o'clock in the morning. It's hard enough getting them to perform at 8 at night.