Who said "The past has no hold on those who refuse to let it."?

This quote is attributed to Grey Worm.

The past has no hold on those who refuse to let it. - Grey Worm

"The past has no hold on those who refuse to let it."

Grey Worm Freedom

"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."

"Freedom to pursue your passion is precious."

"Freedom comes at a cost."

"Order isn't restriction. It's freedom."

"Freedom comes with responsibility"