Who said "Knowledge is power—I already possess both."?

This quote is attributed to Drogon.

Knowledge is power—I already possess both. - Drogon

"Knowledge is power—I already possess both."

Drogon Knowledge

"I am fire. I am death."

"Dracarys."

"A dragon is not a slave."

"I will burn them all."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."