Who said "You are not alone, though you believe yourself to be."?

This quote is attributed to Loki Laufeyson.

You are not alone, though you believe yourself to be. - Loki Laufeyson

"You are not alone, though you believe yourself to be."

Loki Laufeyson Friendship

"I am Loki of Asgard, and I am burdened with glorious purpose."

"You call it madness, but I call it ambition."

"Kneel before me. I am your king."

"The chitauri will devour the weak, and put the strong to work."

"Friendship is built on trust and honesty."

"True friendship is worth more than gold."

"Good friends are like stars, always there even when you can't see them."

"Friendship means sacrifice."