“Dumbledore paused, and although his voice remained light and calm, and he gave no obvious sign of anger, Harry felt a kind of chill emanating from him and noticed that the Dursleys drew very slightly closer together.“You did not do as I asked. You have never treated Harry as a son. He has known nothing but neglect and often cruelty at your hands. The best that can be said is that he has at least escaped the appalling damage you have inflicted upon the unfortunate boy sitting between you.”
“He chose the boy he thought most likely to be a danger to him," said Dumbledore. And notice this, Harry. He chose, not the pureblood (which, according to his creed, is the only kind of wizard worth being or knowing), but the half-blood, like himself. He saw himself in you before he had ever seen you, and in marking you with that scar, he did not kill you, as he intended, but gave you powers, and a future, which have fitted you to escape him not once, but four times so far — something that neither your parents, nor Neville’s parents, ever achieved.”
“Professor Dumbledore. Can I ask you something?" "Obviously, you've just done so," Dumbledore smiled. "You may ask me one more thing, however." "What do you see when you look in the mirror?" "I? I see myself holding a pair of thick, woolen socks." Harry stared."One can never have enough socks," said Dumbledore. "Another Christmas has come and gone and I didn't get a single pair. People will insist on giving me books."It was only when he was back in bed that it struck Harry that Dumbledore might not have been quite truthful. But then, he thought, as he shoved Scabbers off his pillow, it had been quite a personal question.”
“Dumbledore lowered his hands and surveyed Harry through his half-moon glasses. 'It is time,’ he said, ‘for me to tell you what I should have told you five years ago, Harry. Please sit down. I am going to tell you everything.”
“Is it true?" he said. "They're saying all down the train that Harry Potter's in this compartment. So it's you, is it?""Yes," said Harry. He was looking at the other boys. Both of were thickset and looked like bodyguards."Oh, this is Crabbe and this is Goyle," said the pale boy carelssly, noticing where Harry was looking. "And my name's Malfoy, Draco Malfoy." Ron gave a slight cough, which might have been hiding a snigger. Draco Malfoy looked at him. "Think my name's funny, do you? No need to ask who you are. My father told me all the Weasleys have red hair, freckles, and more children than they can afford."He turned back to Harry. "You'll soon find out some wizarding families are much better than others, Potter. You don't want to go making friends with the wrong sort. I can help you there.”
“You are the Chosen One?”“Of course I am,” said Harry calmly.“But then . . . my dear boy . . . you’re asking a great deal . . .you’re asking me, in fact, to aid you in your attempt to destroy —”“You don’t want to get rid of the wizard who killed Lily Evans?”“Harry, Harry, of course I do, but —”“You’re scared he’ll find out you helped me?”Slughorn said nothing; he looked terrified.“Be brave like my mother, Professor. . . .”
“Do you mean ter tell me," he growled at the Dursleys, "that this boy—this boy!—knows nothin' abou'—about ANYTHING?"Harry thought this was going a bit far. He had been to school, after all, and his marks weren't bad."I know some things," he said. "I can, you know, do math and stuff.”