Who said "Your gratitude means nothing to me."?

This quote is attributed to Loki's Tesseract.

Your gratitude means nothing to me. - Loki's Tesseract

"Your gratitude means nothing to me."

Loki's Tesseract Gratitude

"I am burdened with glorious purpose."

"Kneel before your king."

"Freedom is life's great illusion."

"I will never be your slave again."

"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"