I always felt an outsider.

Professor Trelawney: "Everything went pitch-black and the next thing I knew I was being hurled headfirst out of the room!" Harry Potter: "And you didn’t see that coming?" Professor Trelawney: "No, as I say it was pitch — ” [Glares at Harry angrily]

Scared?" Malfoy muttered, so that Lockhart couldn't hear him. "You wish." said Harry out of the corner of his mouth.

It was a shame, but as Ron said, you couldn't have everything in life.

You could be great, you know, it’s all here in your head, and Slytherin will help you on the way to greatness, no doubt about that.

Don't call me Nymphadora, Remus.

Yeah, but coming from Dudley that's like "I love you.