Who said "There is no room for sentiment in the pursuit of power."?

This quote is attributed to Severus Snape.

There is no room for sentiment in the pursuit of power. - Severus Snape

"There is no room for sentiment in the pursuit of power."

Severus Snape Power

"It is our choices that show what we truly are, far more than our abilities."

"Dunderheads. All of you. Particularly you, Potter."

"I can teach you how to bottle fame, brew glory, even put a stopper in death."

"One sip of this potion would make a man invincible."

"Power without control is just destruction."

"Power is not about control, it's about influence"

"The world doesn't need me to be the hero. It just needs me to be dangerous."

"The claws come out when I need them to."