In this episode, Shawn says that his mom left home when he was 9, but in the early seasons, his mom is still home, and takes off during season 2 or 3, when Shawn is around 14 or so.
Morgan: It's a tankini!
Alan: Well, I don't want you wearing anything that ends in "ini"!
Eric (looking at a book): The Autobiography of Malcolm Ten. Rachel must be taking arithmetic.
Morgan: I'm sorry, dad. I grew up. I won't do it again.
Alan: It's fine. Just go get dressed.
Amy: She is dressed.
Alan: The hell she is!
Alan: The eighth grade?! What's wrong with the boys in the fifth grade?
Morgan: I'm in the seventh grade, Dad!
Alan: Don't lie to me!
Eric: Oh, wait Mr. Feeny! Great news; I don't have to sleep in your car anymore.
Mr. Feeny: You've been sleeping in my car? Since when?
Eric: Since I got kicked out of the apartment. I usually wait for you and Dean Whats-her-head to go to bed and then I kinda curl up in the back seat. Unless, of course, I have company over.
Mr. Feeny: You have company in my car?!
Eric: Thursday's spaghetti night.
Shawn (to Jack and Rachel): Will you please tell these two that being in love is the greatest thing there is?
Cory: Tell them. (to Topanga and Angela): Girls, listen. Listen.
Rachel: Jack and I broke up.
Cory: Ya morons!
Eric: I'm gettin' my hair cut right? So I'm sittin' on the pony...
Eric (about his haircut): It's not gonna grow back; I got my receipt!
Cory: You get Feeny this year?
Shawn: Yeah. You?
Cory: Yeah. Which courses?
Shawn: All of them.
Cory: Yeah, me too.