Who said "Loyalty to me is the only loyalty that matters."?

This quote is attributed to Voldemort.

Loyalty to me is the only loyalty that matters. - Voldemort

"Loyalty to me is the only loyalty that matters."

Voldemort Leadership

"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."

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"