Who said "I will have order!"?

This quote is attributed to Severus Snape.

I will have order! - Severus Snape

"I will have order!"

Severus Snape Leadership

Character in Harry Potter and the Chamber of Secrets

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"One cannot always have what one wants, Mr. Potter."

"I am not concerned with your problems."

"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"