I think that and, “Oh and Dude Chinaman is not the preferred nomenclature. Asian American please.” might be the only legal memorable lines.
here are more:
Maude Lebowski: What do you do for recreation?
The Dude: Oh, the usual. I bowl. Drive around. The occasional acid flashback.
Maude Lebowski: [on answering machine] Jeffrey, this is Maude Lebowski. I need to see you. I’m the one who took your rug.
Younger Cop: Well. I guess we can close the books on that one.
Walter Sobchak: Donny you’re out of your element!
[being forced into a limousine]
The Dude: Hey, careful, man, there’s a beverage here!
The Big Lebowski: Isn’t that what makes a man?
The Dude: Mmm, sure. That and a pair of testicles.