Quote from Georgie in the episode A Tire Convention and the Moral High Ground
Jim: What ya thinking? Hold 'em, blackjack, craps? Georgie: Doesn't matter, whatever you want. Jim: Oh, quit your moping. Georgie: I ain't moping, I'm fretting. Jim: What's the difference? Georgie: "Moping" is sad about yesterday. "Fretting" is sad about tomorrow. Jim: That's heavy.