Who said "Education is the weapon of those without swords."?

This quote is attributed to Drogo.

Education is the weapon of those without swords. - Drogo

"Education is the weapon of those without swords."

Drogo Education

"I am the stallion who mounts the world"

"A Dothraki hears a word and takes it as a command"

"You are of my blood. That is enough"

"I will take what is mine with fire and blood"

"Education opens doors."

"Education opens doors to endless possibilities."

"I ain't got the education you got, bub."

"You can't put a price on history."