Yet Lucas doesn't state anything to this extent. This isn't a math test, folks. People can go right on ahead pretending what they think "balance" to mean, but Lucas has stated, over and over, that "balance" is achieved when Anakin kills Palpatine. Anything beyond that is your own thinking, not Lucas'.
[EDIT] Ah, I found it. This reminds me of the "Johnny hates cheese" scenario.
Quote
TWD: One day, little Johnny came home from school and asked his mother to make him a cheese sandwhich. Johnny liked cheese sandwhiches very much, and eating one would please the young child.
FANBOY: Johnny hates cheese!
TWD: Come again?
FB: Johnny hates cheese!
TWD: Well, with all due respect, it's my story, and I should know whether or not this character I made up likes cheese or not.
FB: But I like cheese, and I don't like Johnny! So JOhnny doesn't like cheese!
TWD: Didn't you hear the part where I said that eating a cheese sandwhich would please the child?
FB: Irrelevant! He hates cheese dammit! His mom likes cheese!
TWD: His mom was the one who made him the sandwhich. She, herself, isn't the cheese affectionado.
FB: Fool! His mom loves cheese! Not Johnny Lame-o!
TWD: I give up! What's the use of me telling a story if you're just going to make up your own?