Who said "To rule is to burn away the imperfect."?

This quote is attributed to Drogon.

To rule is to burn away the imperfect. - Drogon

"To rule is to burn away the imperfect."

Drogon Leadership

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"