[Slughorn is snipping tentacular leaves through a window in the greenhouse; Harry, who is walking by, notices Slughorn and walks up behind him. Slughorn is startled] Horace Slughorn: Aaauughh!... Merlin's beard, Harry! Harry Potter: Oh, sorry, sir, I...
Harry Potter: [talking to Slughorn] Be brave, Professor. Be brave like my mother... Otherwise, you disgrace her. Otherwise, she died for nothing. Otherwise, the bowl will remain empty... forever.
Ron Weasley: [to Hermione and Ginny] He'll be here, soon. [starts eating] Hermione Granger: [smacks him on the arm with a book] Will you stop eating? Your best friend is missing! Ron Weasley: Turn around, you lunatic! [Hermione and Ginny looks toward...
Harry Potter: It was Malfoy. Professor Minerva McGonagall: That is a very serious accusation, Potter. Severus Snape: Indeed. Your evidence? Harry Potter: I just know. Severus Snape: You just... know? Once again, you astonish me with your gifts Potter...
Harry Potter: But, Sir, I thought we weren't allowed to apparate on Hogwarts' grounds. Albus Dumbledore: Well, being me... has its privileges.
Severus Snape: [Cormac throws up on Snape's shoes] You've just earned yourself detention for a month, McClaggen.
Harry Potter: [chasing after Snape after Snape killed Dumbledore] Snape! He trusted you!
Draco Malfoy: [looking at Harry's broken nose] Nice face, Potter! [Harry nods disdainfully; Luna pulls out her wand] Luna Lovegood: Would you like me to fix it for you? Personally, I think you look a little more devil-may-care this way, but it's up t...
Arthur Weasley: Times like these, dark times, they do funny things to people. They can tear them apart.
Horace Slughorn: What about you, Miss Granger? What do your parents do in the muggle world? Hermione Granger: Ah, my parents are dentists. Horace Slughorn: And is that considered a dangerous profession?
Albus Dumbledore: Ah, Harry... you need a shave, my friend.
Rubeus Hagrid: [talking about Aragog] I had him from an egg, you know? Tiny little thing he was when he hatched. No bigger than a Pekingese. A Pekingese, mind you! Horace Slughorn: How sweet! I once had a fish... Francis. He was very dear to me. One ...
[Harry is reading a newspaper] Waitress: "Harry Potter." Who's Harry Potter? Harry Potter: Oh, no one. Bit of a tosser, really.
Albus Dumbledore: [about Hermione] Are you and her...? Harry Potter: Oh no, no, no. I mean, she's brilliant, but we're friends.
Albus Dumbledore: [holding up a Muggle magazine] Horace, do you mind if I take this? I do love knitting patterns.
Harry Potter: Sorry I made you miss the carriages by the way, Luna. Luna Lovegood: That's all right, it's like being with a friend. Harry Potter: Oh, I am your friend, Luna. Luna Lovegood: That's nice.
Horace Slughorn: I would have thought an expert potion-maker like yourself could whip up an antidote for a love potion in no time, Harry? Harry Potter: Well, sir, I think this called for a more practiced hand. Ron Weasley: [throws his arms around Slu...
Albus Dumbledore: Take my arm. [apparates] Harry Potter: I just apparated, didn't I? Albus Dumbledore: Indeed. Quite successfully, I might add. Most people vomit their first time. Harry Potter: [dry-heaving] I can't imagine why.