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