Sheldon Cooper: It's not just a date... it's a textbook optimization problem. There is a perfect date... just like there's a perfect room temperature and a perfect dessert.

Penny Hofstadter: Mm. There's no perfect dessert.

Sheldon Cooper: Yellow cake in the shape of a dinosaur with chocolate frosting, a scoop of vanilla ice cream on the side, not touching. You'll see. You'll have it at our wedding.