Who said "Freedom is earned through the burning of chains."?

This quote is attributed to Drogon.

Freedom is earned through the burning of chains. - Drogon

"Freedom is earned through the burning of chains."

Drogon Freedom

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"Freedom to pursue your passion is precious."

"Freedom comes at a cost."

"Order isn't restriction. It's freedom."

"Freedom comes with responsibility"