J.K. Rowling

Every witch or wizard with a wand has held in his or her hands more power than we will ever know. With the right spell or potion, they can fabricate love, travel through time, change physical form and even extinguish life.

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...

At that moment, Harry fully understood for the first time why people said Dumbledore was the only wizard Voldemort had ever feared. The look upon Dumbledore's face as he stared down at the unconscious form of Mad-Eye moody was more terrible than Harry could have ever imagined. There was no benign smile upon Dumbledore's face, no twinkle in the eyes behind the spectacles. There was cold fury in every line of the ancient face; a sense of power radiated from Dumbledore as though he were giving off burning heat.

Power was my weakness and my temptation.

In the end, it mattered not that you could not close your mind. It was your heart that saved you.

The mind is not a book, to be opened at will and examined at leisure.

The Death Eaters were waiting for us,_ Harry told her. __e were surrounded the moment we took off _ they knew it was tonight _ I don__ know what happened to anyone else, four of them chased us, it was all we could do to get away, and then Voldemort caught up with us ___e could hear the self-justifying note in his voice, the plea for her to understand why he did not know what had happened to her sons, but ___hank goodness you__e all right,_ she said, pulling him into a hug he did not feel he deserved.__aven__ go_ any brandy, have yeh, Molly?_ asked Hagrid a little shakily. __er medicinal purposes?__he could have summoned it by magic, but as she hurried back toward the crooked house, Harry knew that she wanted to hide her face.

Makes a diff'rence, havin' a decent family,' he said. 'Me dad was decent. An' your mum an' dad were decent. If they'd lived, life woulda bin diff'rent, eh?''Yeah, I s'pose,' said Harry cautiously. Hagrid seemed to be in a very strange mood.'Family,' said Hagrid gloomily. 'Whatever yeh say, blood's important...

I'm serious, Harry, don't go." But Harry only had one thought in his head, which was to get back in front of the mirror, and Ron wasn't going to stop him.That third night he found his way more quickly than before. He was walking so fast he knew he was making more noise than was wise, but he didn't meet anyone.And there were his mother and father smiling at him again, and one of his grandfathers nodding happily. Harry sank down to sit on the floor in front of the mirror. There was nothing to stop him from staying here all night with his family. Nothing at all.

Hagrid, look what I__e got for relatives!_ Harry said furiously. __ook at the Dursleys!___n excellent point,_ said Professor Dumbledore. __y own brother, Aberforth, was prosecuted for practicing inappropriate charms on a goat. It was all over the papers, but did Aberforth hide? No, he did not! He held his head high and went about his business as usual! Of course, I__ not entirely sure he can read, so that may not have been bravery. . . .

Youth can not know how age thinks and feels. But old men are guilty if they forget what it was to be young.

She was a very pretty woman. She had dark red hair and her eyes -- her eyes are just like mine, Harry thought, edging a little closer to the glass. Bright green -- exactly the same shape, but then he noticed that she was crying; smiling, but crying at the same time. The tall, thin, black-haired man standing next to her put his arm around her. He wore glasses, and his hair was very untidy. It stuck up at the back, just like Harry's did.Harry was so close to the mirror now that his nose was nearly touching that of his reflection."Mum?" he whispered. "Dad?"They just looked at him, smiling. And slowly, Harry looked into the faces of the other people in the mirror and saw other pairs of green eyes like his, other noses like his, even a little old man who looked as though he had Harry's knobbly knees -- Harry was looking at his family, for the first time in his life.The Potters smiled and waved at Harry and he stared hungrily back at them, his hands pressed flat against the glass as though he was hoping to fall right through it and reach them. He had a powerful kind of ache inside of him, half joy, half terrible sadness.

You sort of start thinking anything__ possible if you__e got enough nerve

There was a clatter as the basilisk fangs cascaded out of Hermione's arms. Running at Ron, she flung them around his neck and kissed him full on the mouth. Ron threw away the fangs and broomstick he was holding and responded with such enthusiasm that he lifted Hermione off her feet. "Is this the moment?" Harry asked weakly, and when nothing happened except that Ron and Hermione gripped each other still more firmly and swayed on the spot, he raised his voice. "OI! There's a war going on here!" Ron and Hermione broke apart, their arms still around each other. "I know, mate," said Ron, who looked as though he had recently been hit on the back of the head with a Bludger, "so it's now or never, isn't it?" "Never mind that, what about the Horcrux?" Harry shouted. "D'you think you could just --- just hold it in, until we've got the diadem?" "Yeah --- right --- sorry ---" said Ron, and he and Hermione set about gathering up fangs, both pink in the face.

Sirius was a brave, clever, and energetic man, and such men are not usually content to sit at home in hiding while they believe others to be in danger.

As Hagrid had said, what would come would come and he would have to meet it when it did.

Oh, these people's minds work in strange ways, Petunia, they're not like you and me," said Uncle Vernon, trying to knock in a nail with the piece of fruitcake Aunt Petunia had just brought him.

(...) __o have a hairy heart_ has passed into everyday wizarding language to describe a cold or unfeeling witch or wizard.