It more like an exchange but here it is..
It when the Fonz tells Richie his rule son how to How to win women.
Fonzie: Whatver she likes, you like.
Richie: But what if she likes something stupid?
Fonzie: Rich-ard, do you want to win an arguement or a girl?
Richie: A girl!
I didn't realize the board was in danger of dying out...