Penny
Has Leonard ever dated any regular girls?
Sheldon
Well, I assume that you're not talking about digestive regularity, because I've come to learn that such inquiries are inappropriate.
Penny
No, I mean has he ever dated someone who wasn't a brainiac?
Sheldon
Oh, well there was this one girl who had a PhD in French Literature.
Penny
How is that not a brainiac?
Sheldon
Well, for one thing, she was French. For another, it was literature.
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