Who said "I have learned that dedication is the only real talent."?

This quote is attributed to Maria Callas.

I have learned that dedication is the only real talent. - Maria Callas

"I have learned that dedication is the only real talent."

Maria Callas Work

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."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."