J.K. Rowling, Harry Potter and the Sorcerer's Stone

"There is no good and evil, there is only power and those too weak to seek it."

"Your mother died to save you. If there is one thing Voldemort cannot understand, it is love. Love as powerful as your mother's for you leaves it's own mark. To have been loved so deeply, even though the person who loved us is gone, will give us some protection forever."

"The truth."Dumbledore sighed. "It is a beautiful and terrible thing, and should therefore be treated with great caution."

"They heard the click of the mail slot and flop of letters on the doormat. "Get the mail, Dudley,"said Uncle Vernon from behind his paper. "Make Harry get it.""Get the mail, Harry.""Make Dudley get it.""Poke him with your Smelting stick, Dudley."

"He didn't realize that love as powerful as your mother's for you leaves its own mark."

"As much money and life as you could want! The two things most human beings would choose above all - the trouble is, humans do have a knack of choosing precisely those things that are worst for them."

"It takes a great deal of bravery to stand up to our enemies, but just as much to stand up to our friends."

"No, thanks,"said Harry. "The toilet's never had anything as horrible as your head down it— it might be sick."Then he ran, before Dudley could work out what he'd said."

"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."

"I hope you're pleased with yourselves. We could all have been killed - or worse, expelled. Now if you don't mind, I'm going to bed."

"Fred, you next,"the plump woman said. "I'm not Fred, I'm George,"said the boy. "Honestly, woman, you call yourself our mother? Can't you tell I'm George?""Sorry, George, dear.""Only joking, I am Fred,"said the boy and off he went."

"To the well-organized mind, death is but the next great adventure."

"Nitwit! Blubber! Oddment! Tweak!"

"There are some things you can't share without ending up liking each other, and knocking out a twelve-foot mountain troll is one of them."

"Fear of a name increases fear of the thing itself."

"There is no good and evil, there is only power and those too weak to seek it."

"Everybody finished the song at different times. At last, only the Weasley twins were left singing along to a very slow funeral march."

"Now, you two – this year, you behave yourselves. If I get one more owl telling me you've – you've blown up a toilet or –""Blown up a toilet? We've never blown up a toilet.""Great idea though, thanks, Mum."

"Call him Voldemort, Harry. Always use the proper name for things. Fear of a name increases fear of the thing itself."

"It does not do to dwell on dreams and forget to live."