Diane: I'd love to go with you, but I've got a class right now.
Thornton Melon : Well, why don't you come and see me some time when you have no class.
I liked the line where he said to the college girls "Hey girls, why don't you come over here and help me straighten out my Longfellow."
That movie was always a dorm classic at the University of Wisconsin. Pretty much everything except the swimming pool stuff was shot there. (Naturally, there is no outdoor university pool at Wisconsin...) Great movie.