Who said "Dreams are forged in fire and earned through will."?

This quote is attributed to Drogon.

Dreams are forged in fire and earned through will. - Drogon

"Dreams are forged in fire and earned through will."

Drogon Dreams

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"This is going to be a great show!"

"Dreams are what make life worth living."

"Never stop dreaming big."

"Dreams are what keep us going."