Who said "Victory comes to those who are most disciplined."?

This quote is attributed to Grey Worm.

Victory comes to those who are most disciplined. - Grey Worm

"Victory comes to those who are most disciplined."

Grey Worm Success

"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."

"Success comes to those who never give up."

"Success is measured by happiness, not money."

"You make your own luck in this world."

"You have to be organized to be successful in anything."