Hagrid: Harry -- yer a wizard.
Harry: I'm a what?

The wand picks you, you don't pick the wand.

What an idiot.

Hermione: You! You foul, loathsome, evil little cocroach!
Ron: Hermione, no! He's no worth it.

Ron: Why spiders? Why couldn't it be "follow the butterflies?

Ron: [mimicking Hermione] "It's Levi-OOOOH-sa not LevioSAR." She's a nightmare, honestly. It's no wonder she hasn't got any friends!