Who said "Gratitude means nothing to one who has lost everything."?

This quote is attributed to The Night King.

Gratitude means nothing to one who has lost everything. - The Night King

"Gratitude means nothing to one who has lost everything."

The Night King Gratitude

"The living are not my concern."

"Death is the enemy. And we are joining the fight against it."

"Winter came for House Umber."

"I am the night."

"Gratitude makes life richer."

"A grateful heart is a happy heart."

"Respect those who came before us."

"Life's greatest treasures are the people we love"