Who said "Rules exist for a reason, and we must respect them."?

This quote is attributed to Hermione Granger.

Rules exist for a reason, and we must respect them. - Hermione Granger

"Rules exist for a reason, and we must respect them."

Hermione Granger

"I do hope you're planning to die, Harry, because if not, you're heading straight for a Muggle hospital."

"It's not who you are underneath, but what you do that defines you."

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

"Books are a uniquely portable magic."