Who said "Change is the only constant in this world."?

This quote is attributed to Brienne of Tarth.

Change is the only constant in this world. - Brienne of Tarth

"Change is the only constant in this world."

Brienne of Tarth Change

"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."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."