There is an expiry date on blaming your parents for steering you in the wrong direction; the moment you are old enough to take the wheel, responsibility lies with you.

Voldemort is playing a very clever game. Declaring himself might have provoked open rebellion. Remaining masked has created confusion, uncertainty, and fear.

Dumbledore says people find it far easier to forgive others for being wrong than being right.

For that was the terrible power of the dementors: to force their victims to relive the worst memories of their lives, and drown, powerless, in theirown despair. . . .

He tried to give his wife pleasure in little ways, because he had come to realize, after nearly two decades together, how often he disappointed her in the big things. It was never intentional. They simply had very different notions of what ought to take up most space in life.

Professor Flitwick had dried himself off and set Seamus lines ("I am a wizard not a baboon brandishing a stick")

Harry - you're a great wizard, you know." "I'm not as good as you," said Harry, very embarrassed, as she let go of him. "Me!" said Hermione. "Books! And cleverness! There are more important things - friendship and bravery and - oh Harry - be careful!