Who said "Every mistake is a lesson in disguise."?

This quote is attributed to Duke Ellington.

Every mistake is a lesson in disguise. - Duke Ellington

"Every mistake is a lesson in disguise."

Duke Ellington

Jazz Composer Pianist American 1899–1974

"Music is my life, it's my soul, it's everything I do in this world."

"Do not fear mistakes. There are none."

"A wise man doesn't give the right answer, he poses the right question."

"There are simply two kinds of music, good music and the other kind."