Who said "A man's choices define him, not his chains."?

This quote is attributed to Grey Worm.

A man's choices define him, not his chains. - Grey Worm

"A man's choices define him, not his chains."

Grey Worm Power

"I am Grey Worm. I have no name."

"Unsullied do not fear death."

"We are the dragons' soldiers."

"A soldier's duty is to obey."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."