Who said "Gratitude is a sentiment for the weak and dependent."?

This quote is attributed to Voldemort.

Gratitude is a sentiment for the weak and dependent. - Voldemort

"Gratitude is a sentiment for the weak and dependent."

Voldemort Gratitude

"There is no good and evil, there is only power, and those too weak to seek it."

"I have grown stronger than I was, more terrible, more powerful."

"Fear of a name increases fear of the thing itself."

"Failure and death they are but shadows to me."

"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"