Who said "The past cannot be changed, only learned from."?

This quote is attributed to Theon Greyjoy.

The past cannot be changed, only learned from. - Theon Greyjoy

"The past cannot be changed, only learned from."

Theon Greyjoy History

"I am the Prince of Winterfell. I have no need to prove myself to anyone."

"What is dead may never die."

"You can't marry her. You're promised to me."

"I'm a Greyjoy. We do not sow."

"I've seen a lot of things in my time."

"That's how we archaeologists tell time."

"We must learn from history or be doomed to repeat it."

"Every artifact tells a story."