Who said "A man who doesn't know his own mind isn't worth much."?

This quote is attributed to Rhett Butler.

A man who doesn't know his own mind isn't worth much. - Rhett Butler

"A man who doesn't know his own mind isn't worth much."

Rhett Butler Leadership

"I'll think of it all tomorrow at Tara. I can stand it then. After all, tomorrow is another day!"

"Frankly, my dear, I don't give a damn."

"You're a creature of passion and integrity, my dear, which is precisely why you'll never be happy."

"Life's under no obligation to give us what we expect."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"