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

This quote is attributed to Daenerys Targaryen.

The past cannot be changed, only learned from. - Daenerys Targaryen

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

Daenerys Targaryen History

"I am the blood of Old Valyria. I am the dragon."

"A dragon is not a slave."

"I will take what is mine with fire and blood."

"The night is dark and full of terrors, but so is the day."

"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."