Who said "I am grateful only to myself for my achievements."?

This quote is attributed to Zurg.

I am grateful only to myself for my achievements. - Zurg

"I am grateful only to myself for my achievements."

Zurg Gratitude

"Fear is the most delicious emotion of all!"

"I didn't become Emperor by being timid."

"Power is not given—it is taken."

"Every great villain starts with a dream."

"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"