“Magic causes as much trouble as it cures.”

“The trouble is, the other side can do magic too, Prime Minister.”

“Divination is turning out to be much more trouble than I could have foreseen, never having studied the subject myself.”

“That which Voldemort does not value, he takes no trouble to comprehend. Of house-elves and children’s tales, of love, loyalty, and innocence, Voldemort knows and understands nothing. Nothing. That they all have a power beyond his own, a power beyond the reach of any magic, is a truth he has never grasped.”

“The Prime Minister gazed hopelessly at the pair of them for a moment, then the words he had fought to suppress all evening burst from him at last.“But for heaven’s sake — you’re wizards! You can do magic! Surely you can sort out — well — anything!”Scrimgeour turned slowly on the spot and exchanged an incredulous look with Fudge, who really did manage a smile this time as he said kindly, “The trouble is, the other side can do magic too, Prime Minister.”

“I think I'd better do the actual stealing," Hermione continued in a matter-of-fact tone. "You two will be expelled if you get into anymore trouble, and I've got a clean record. So all of you need to do is cause enough mayhem to keep Snape busy for five minutes or so.”

“And his knowledge remained woefully incomplete, Harry! That which Voldemort does not value, he takes no trouble to comprehend. Of house-elves and children's tales, of love, loyalty, and innocence, Voldemort knows and understands nothing. Nothing. That they all have a power beyond his own, a power beyond the reach of any magic, is a truth he has never grasped...”