Lisa Simpson: No, this can't be right! They're all horrible!
Homer Simpson: Yeah, the Simpson family is a long line of horse thieves, deadbeats, horse beats, dead thieves, and even a few alcoholics.
Lisa Simpson: There must have been a few good ancestors. Grandpa, don't you know any?
Abraham Simpson: Not a one! Maybe the nicest was Abigail Simpson, who you know as the Pittsburgh Poisoner.
Homer Simpson: If I were you, I wouldn't dig into the past. I lived in some of that past, and I got out for a reason.
Lisa Simpson: I won't give up! I have to know that somewhere in the muck and the mire and the Pittsburgh Poisoners, this family had a noble spark, and I will find it! Even if I have to go back to Adam and Eve.
Abraham Simpson: Oh, you mean Adam and Eve Simpson, or as you may know them, Julius and Ethel Rosenberg.
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From: The Simpsons