Who said "I have learned that power without purpose is empty."?

This quote is attributed to Daenerys Targaryen.

I have learned that power without purpose is empty. - Daenerys Targaryen

"I have learned that power without purpose is empty."

Daenerys Targaryen Philosophy

"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 the worst humanity has to offer."

"Sometimes I wonder if the world is worth saving."

"Every choice shapes our destiny."

"Order is the foundation of a good life."