He must have known I'd want to leave you." "No, he must have known you would always want to come back.

Death's got an Invisibility Cloak?" Harry interrupted again. "So he can sneak up on people," said Ron. "Sometimes he gets bored of running at them, flapping his arms and shrieking.

Braggarts and rogues, dogs and scoundrels, drive them out, Harry Potter, see them off!

Dumbledore will only leave from Hogwarts when there are none loyal to him!

As for the fact that Malfoy, Crabbe, and Goyle apeared to be going their different ways when they were usually inseparable, these things happened as people got older--Ron and Hermione, Harry reflected sadly, were living proof.

Merlin’s beard, Harry, you made me jump,” said Slughorn, stopping dead in his tracks and looking wary. “How did you get out of the castle?” “I think Filch must’ve forgotten to lock the doors,” said Harry cheerfully, and was delighted to see Slughorn scowl.

The poor are discussed as this homogeneous mash, like porridge. The idea that they might be individuals, and be where they are for very different, diverse reasons, again seems to escape some people.