Who said "Art is merely the propaganda of the vanquished."?

This quote is attributed to Loki's Tesseract.

Art is merely the propaganda of the vanquished. - Loki's Tesseract

"Art is merely the propaganda of the vanquished."

Loki's Tesseract Art

"I am burdened with glorious purpose."

"Kneel before your king."

"Freedom is life's great illusion."

"I will never be your slave again."

"The stage is my true home."

"Art is the expression of the soul."

"Living well means living properly."

"Art and music are the treasures of civilization"