Who said "The eternal night is my humor, my joy, my purpose."?

This quote is attributed to The Night King.

The eternal night is my humor, my joy, my purpose. - The Night King

"The eternal night is my humor, my joy, my purpose."

The Night King Humor

"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."

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."