"I have seen him sob for five minutes in his dressing room after the first act [of Pagliacci]; I have seen him fall on the stage, faint from emotion; and I have also seen him come off whistling gaily and joking with the chorus. Whatever his own emotions were, his audience was invariably overwhelmed. I asked him to explain the secret of this power. He said, "I suffer so much in this life, Doro. That is what they feeling when I sing, that is why they cry. People who felt nothing in this life cannot sing."
This words come from an Enrico Caruso nice web site: http://www.enricocaruso.dk/caruso_artist_and_man.html
