I'll have the rent by the end of the week, go tell the mayor.

No you're not hardcore! Unless you live hardcore! And the legend of the rent was way hardcore!

Dewey Finn: Who are you babe? This is my apartment babe.
Patty Di Marco: Oh oh, not if you don't pay your rent, it's not.

Summer Hathaway: Groupie?
Dewey Finn: What's the matter?
Summer Hathaway: You want me to be a groupie?
Dewey Finn: Well... a groupie's an important job.
Summer Hathaway: I researched groupies on the Internet.They're sluts!They sleep with the band!
Dewey Finn: No, that's not true. They're like cheerleaders.

Its gonna be a really tough project, you're gonna have to use your head, your brain and your mind too.

And we're gonna start a revolution ok? And You're gonna be a funny little footnote on my epic ass!

I'm a teacher. All I need are minds for molding.

Dewey Finn: Give me a platform. Let's rock, let's rock, today. Now do it to me.
Lawrence: Let's rock, let's rock, today.
Dewey Finn: That's good. Slap it, shoot it, ka-boot it.

Dewey Finn: Katie, what was that thing you were playing today, the big thing?
Katie: Cello.
Dewey Finn: Ok. This is a bass guitar. And it's the exact same thing but instead of playing it like this you tip it on the side... cello, you got a bass.

Dude, I service society by rocking, OK? I'm out there on the front lines liberating people with my music!

You don't have to worry about me because I'm a hard-ass. And if a kid gets out of line, I got no problem smacking them in the head.

Those that can't do, teach, and those that can't teach... teach gym.

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