Who said "To serve is to find meaning in this world."?

This quote is attributed to Grey Worm.

To serve is to find meaning in this world. - Grey Worm

"To serve is to find meaning in this world."

Grey Worm Leadership

"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."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"