This is the only episode in which Martin was ever in Roz's apartment.
(The teacher grabs the note from Niles and Frasier)
Teacher: Is that a funny note there? I enjoy funny things. Why don't I share it with the class?
(Pauses to read the note and stops)
Teacher: Does anyone here read French?
(Frasier raises his hand)
Teacher: (now miffed) Anyone besides Frasier?
(Niles raises his)
(Talking about the automobile repair class)
Roz: Wow, it sounds like you guys should just quit.
Frasier: If only we could, Roz. It's just that dad and Daphne are so proud of us, we can't let them down. They already bought mahogany frames so they can frame our certificates of completion.
Roz: So complete it! I mean, it doesn't mean you have to ace it. Just nod your head a few times and you're home free.
Niles: Are you suggesting we..... coast?
Frasier: We have never walked the back alleys of underachievement before!
Niles: Dare we?
(They look at each other, pause and then close their books)
Niles: Oooh, I just got a chill!
Frasier: Please, please don't throw us out!
Niles: We'll shut up, we promise!
Randy: You promised that four times tonight. Sorry, you're gone.
Frasier: But what are we gonna tell our dad?
Niles: And my girlfriend?
Randy: Maybe you should have thought of that before you started goofing off.
Frasier: (while dialing the phone) I am a true laborer. I earn that I eat, get that I wear. Owe no man hate, envy no man's happiness...
This is a quote from Shakespeare's As You Like It, spoken by Corin, Act 3, Scene 2.