Who said "Mortality is a weakness of lesser beings."?

This quote is attributed to Loki's Tesseract.

Mortality is a weakness of lesser beings. - Loki's Tesseract

"Mortality is a weakness of lesser beings."

Loki's Tesseract Strength

"I am burdened with glorious purpose."

"Kneel before your king."

"Freedom is life's great illusion."

"I will never be your slave again."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."