Who said "The greatest teachers are the characters we portray."?

This quote is attributed to Maria Callas.

The greatest teachers are the characters we portray. - Maria Callas

"The greatest teachers are the characters we portray."

Maria Callas Education

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."

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."