Who said "To live is to change; to refuse change is to fade away."?

This quote is attributed to Sif.

To live is to change; to refuse change is to fade away. - Sif

"To live is to change; to refuse change is to fade away."

Sif Change

"I have waited lifetimes for this moment."

"A warrior's heart beats strongest in battle."

"We are bound by more than just duty."

"The past shapes who we become."

"Change brings new opportunities."

"Every day is a new opportunity."

"Healing doesn't mean forgetting."

"You either get better or you get bitter."