Who said "Every moment on stage is a gift and a responsibility."?

This quote is attributed to Maria Callas.

Every moment on stage is a gift and a responsibility. - Maria Callas

"Every moment on stage is a gift and a responsibility."

Maria Callas Gratitude

Opera Soprano Greek-American 1923–1977

"You have to fight to reach your dream. You have to sacrifice and work hard for it."

"If music is the food of love, play on."

"I am my own sanctuary and I can be reborn as many times as I choose throughout my life."

"The mission of an artist is to save the soul of mankind."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"