Frasier: It's your fault, Lilith!
Lilith: What?
Frasier: Yes, obviously you have an inferior gene pool.
Lilith: Me?
Frasier: Well, I didn't have a grandfather who was a butter and egg man in New Jersey.
Lilith: Mother warned me you'd say you love me, but sooner or later, you'd bring that up.
Frasier: Lilith, Lilith, I'm sorry. My grandfather wasn't even in America at that time. If he had been, he wouldn't be hawking butter and eggs.