Who said "A coward dies a thousand deaths. A warrior dies but once."?

This quote is attributed to Drogo.

A coward dies a thousand deaths. A warrior dies but once. - Drogo

"A coward dies a thousand deaths. A warrior dies but once."

Drogo Courage

"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"

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."