Who said "Adventure leads only to the grave."?

This quote is attributed to The Night King.

Adventure leads only to the grave. - The Night King

"Adventure leads only to the grave."

The Night King Adventure

"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."

"The greatest adventure is life itself."

"The adventure of life begins with a single step."

"Adventure finds you when you stop running."

"Fortune and glory, kid."