"The mind is not a book, to be opened at will and examined at leisure. Thoughts are not etched on the inside of skulls, to be pursued by an invader. The mind is a complex and many-layered thing, Potter ... or at least, most minds are."
- Severus Snape (Chapter 24, Occlumency, Harry Potter and the Order of the Phoenix, 2003.)
'What was there to be gained by fighting the most evil wizard who has ever existed?' said Black, with a terrible fury in his face. 'Only innocent lives, Peter!'
'You don't understand!' whined Pettigrew. He would have killed me, Sirius!'
'THEN YOU SHOULD HAVE DIED!' roared Black. 'DIED RATHER THAN BETRAY YOUR FRIENDS, AS WE WOULD HAVE DONE FOR YOU!'
(Chapter 17, Cat, Rat, and Dog,Harry Potter and the Prisoner of Azkaban, 1999.)
That's what they should teach us here, he thought, turning over on to his side, how girls' brains work ... it'd be more useful than Divination, anyway.
- Harry Potter (Chapter 21, Eye of the Snake, Harry Potter and the Order of the Phoenix, 2003.)
But he understood at last what Dumbledore had been trying to tell him. It was, he though, the difference between being dragged into the arena to face a battle to the death and walking into the arena with your head held high. Some people, perhaps, would say that there was little to choose between the two ways, but Dumbledore new — and so do I, thought Harry, with a rush of fierce pride, and so did my parents — that there was all the difference in the world.
- Harry Potter (Chapter 23, Horcruxes, Harry Potter and the Half-Blood Prince, 2005.)
'Your mother died to save you. If there is one thing Voldemort cannot understand, it is love. He didn't realise that love as powerful as your mother's for you leaves its own mark. Not a scar, no visible sign ... to have been loved so deeply, even though the person who loved us is gone, will give us some protection forever. It is in your very skin. Quirrell, full of hatred, greed, and ambition, sharing his soul with Voldemort, could not touch you for this reason. It was agony to touch a person marked by something so good.'
- Albus Dumbledore (Chapter 17, The Man With Two Faces, Harry Potter and the Philosopher's Stone, 1997.)
'Socks are Dobby's favourite, favourite clothes, sir!' he said, ripping off his odd ones and pulling on Uncle Vernon's. 'I has seven now, sir .... But sir ...' he said, his eyes widening, having pulled both socks up to their highest extent, so that they reached to the bottom of his shorts, 'they has made a mistake in the shop, Harry Potter, they is giving you two the same!'
- Dobby [to Harry] (Chapter 23, The Yule Ball, Harry Potter and the Goblet of Fire, 2000)