"Remember, if the time should come when you have to make a choice between what is right and what is easy, remember what happened to a boy who was good, and kind, and brave, because he strayed across the path of Lord Voldemort. Remember Cedric Diggory."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"It is our choices, Harry, that show us who we truly are, far more than our abilities."
— J.K. Rowling (Harry Potter and the Chamber of Secrets)

"It does not do to dwell on dreams and forget to live."
— J.K. Rowling (Harry Potter and the Sorcerer's Stone)

"Happiness can be found, even in the darkest of times, if one only remembers to turn on the light."
— J.K. Rowling (Harry Potter and the Prisoner of Azkaban)

"You're the one who is weak. You will never know love or friendship. And I feel sorry for you."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"To the well-organized mind, death is but the next great adventure."
— J.K. Rowling (Harry Potter and the Sorcerer's Stone)

"It takes much bravery to stand up to our enemies but we need as much bravery to stand up to our friends."
— J.K. Rowling (Harry Potter and the Sorcerer's Stone)

"Of course it is happening inside your head, Harry, but why on earth should that mean that it is not real?"
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"I solemnly swear that I am up to no good."
— J.K. Rowling (Harry Potter and the Prisoner of Azkaban)

"It matters not what someone is born, but what they grow to be."
— J.K. Rowling

"The truth. It is a beautiful and terrible thing, and should be treated with caution."
— J.K. Rowling

"Do you remember me telling you we are practicing non-verbal spells, Potter?"
"Yes," said Harry stiffly.
"Yes, sir."
"There's no need to call me "sir" Professor."
The words had escaped him before he knew what he was saying."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Oh well... I'd just been thinking, if you had died, you'd have been welcome to share my toilet."
— J.K. Rowling (Harry Potter and the Chamber of Secrets)

"It is impossible to live without failing at something, unless you live so cautiously that you might as well not have lived at all - in which case, you fail by default."
— J.K. Rowling

"Just because you have the emotional range of a teaspoon doesn't mean we all have."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"As strong as we are united. As weak as we are divided."
— J.K. Rowling

"Do not pity the dead, Harry. Pity the living, and, above all those who live without love."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"Wit beyond measure is a man's greatest treasure."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"Mr. Moony presents his compliments to Professor Snape, and begs him to keep his abnormally large nose out of other people's business.

Mr. Prongs agrees with Mr. Moony, and would like to add that Professor Snape is an ugly git.

Mr. Padfoot would like to register his astonishment that an idiot like that ever became a professor.

Mr. Wormtail bids Professor Snape good day, and advises him to wash his hair, the slimeball."
— J.K. Rowling (Harry Potter and the Prisoner of Azkaban)

"Let us step into the night and pursue that flighty temptress, adventure."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Yeah, Quirrell was a great teacher. There was just that minor drawback of him having Lord Voldemort sticking out of the back of his head!"
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"We're all human, aren't we? Every human life is worth the same, and worth saving."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"We've all got both light and dark inside us. What matters is the part we choose to act on. That's who we really are."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"Percy wouldn't notice a joke if it danced naked in front of him wearing one of
Dobby's hats."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"Numbing the pain for a while will make it worse when you finally feel it."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"He can run faster than Severus Snape confronted with shampoo."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"It is the unknown we fear when we look upon death and darkness, nothing more."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Albus Severus," Harry said quietly, so that nobody but Ginny could hear, and she was tactful enough to pretend to be waving to Rose, who was now on the train, "you were named for two headmasters of Hogwarts. One of them was a Slytherin and he was probably the bravest man I ever knew."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"Nitwit, blubber, oddment, tweak."
— J.K. Rowling (Harry Potter and the Sorcerer's Stone)

"Holey? You have the the whole world of ear-related humor before you, you go for holey?"
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"It was, he thought, 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 knew - 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."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Ginny!" said Mr. Weasley, flabbergasted. "Haven't I taught you anything? What have I always told you? Never trust anything that can think for itself if you can't see where it keeps it's brain?"
— J.K. Rowling (Harry Potter and the Chamber of Secrets)

"I don't go looking for trouble. Trouble usually finds me."
— J.K. Rowling

"It is my belief... that the truth is generally preferable to lies."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"'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...'"
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"I DON'T CARE!" Harry yelled at them, snatching up a lunascope and throwing it into the fireplace. "I'VE HAD ENOUGH, I'VE SEEN ENOUGH, I WANT OUT, I WANT IT TO END, I DON'T CARE ANYMORE"
"You do care," said Dumbledore. He had not flinched or made a single move to stop Harry demolishing his office. His expression was calm, almost detached. "You care so much you feel as though you will bleed to death with the pain of it."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"You could say sorry," suggested Harry bluntly.
"What, and get attacked by another flock of canaries?" muttered Ron.
"What did you have to imitate her for?"
"She laughed at my mustache!"
"So did I, it was the stupidest thing I've ever seen."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Not my Daughter, you Bitch!"
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"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."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"He was my mum and dad's best friend. He's a convicted murderer, but he's broken out of wizard prison and he's on the run. He likes to keep in touch with me, though...keep up with news...check if I'm happy..."
— J.K. Rowling (Harry Potter and the Goblet of Fire)

"Ah" said Dumbledore gently, "Yes I thought we might hit that little snag!"
"Snag?" said Fudge, his voice still vibrating with joy. "I see no snag, Dumbledore!"
"Well," said Dumbledore apologetically, "I'm afraid I do."
"Oh, really?"
"Well it's just that you seem to be labouring under the delusion that I am going to -- come quietly. I am afraid I am not going to come quietly at all, Cornelius. I have absolutely no intention of being sent to Azkaban. I could break out, of course -- but what a waste of time, and frankly, I can think of a whole host of things I would rather be doing."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"It's going to be alright sir," Harry said over and over again, more worried by Dumbledore's silence than he had been by his weakened voice. "We're nearly there ... I can Apparate us both back ... don't worry ..."

"I am not worried, Harry," said Dumbledore, his voice a little stronger despite the freezing water. "I am with you."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Harry was left to ponder in silence the depths to which girls would sink to get revenge."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"Give her hell from us, Peeves."
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"Dumbledore watched her fly away, and as her silvery glow faded he turned back to Snape, and his eyes were full of tears.

'After all this time?'

'Always,' said Snape."
— J.K. Rowling (Harry Potter and the Deathly Hallows)

"Well?" Ron said finally, looking up at Harry. "How was it?"
Harry considered it for a moment. "Wet," he said truthfully.
Ron made a noise that might have indicated jubilation or disgust, it was hard to tell.
"Because she was crying," Harry continued heavily.
"Oh," said Ron, his smile faded slightly. "Are you that bad at kissing?"
"Dunno," said Harry, who hadn't considered this, and immediately felt rather worried. "Maybe I am.""
— J.K. Rowling (Harry Potter and the Order of the Phoenix)

"You'd think people had better things to gossip about," said Ginny as she sat on the common room floor, leaning against Harry’s legs and reading the Daily Prophet. "Three Dementor attacks in a week, and all Romilda Vane does is ask me if it’s true you’ve got a Hippogriff tattooed across your chest."
Ron and Hermione both roared with laughter. Harry ignored them.
"What did you tell her?"
"I told her it's a Hungarian Horntail," said Ginny, turning a page of the newspaper idly. "Much more macho."
"Thanks," said Harry, grinning. "And what did you tell her Ron’s got?"
"A Pygmy Puff, but I didn’t say where."
— J.K. Rowling (Harry Potter and the Half-Blood Prince)

"You haven't got a letter on yours," George observed. "I suppose she thinks you don't forget your name. But we're not stupid-we know we're called Gred and Forge."
— J.K. Rowling (Harry Potter and the Sorcerer's Stone)

"Accio Brain!"
— J.K. Rowling (Harry Potter and the Order of the Phoenix)