Who said "Time moves forward, but winter is patient."?

This quote is attributed to The Night King.

Time moves forward, but winter is patient. - The Night King

"Time moves forward, but winter is patient."

The Night King Patience

"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."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."