Who said "A true leader serves those they command, not the reverse."?

This quote is attributed to Brienne of Tarth.

A true leader serves those they command, not the reverse. - Brienne of Tarth

"A true leader serves those they command, not the reverse."

Brienne of Tarth Leadership

"I am no one's daughter now. I am Brienne of Tarth, and I will answer to no man but the Lord of Light."

"The things we love destroy us. Every time."

"I'm not a lady. I'm a warrior."

"Oaths are not words. They are things we do."

"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"