- Mary Cooper: Excited to be going home?
- Sheldon Cooper: [Taps his head] This is home. I'm always here. But I am excited to share everything I've learned with my colleagues.
- Mary Cooper: That's nice.
- Sheldon Cooper: Scientifically speaking, they're savages, covered in their own filth, and I'll be bringing them the light.
- Mary Cooper: There's probably a nicer way to say that.
- Sheldon Cooper: Oh, there is. But if a summer in Germany has taught me anything, it's that brutal honesty is its own kind of love.
- Mary Cooper: I'll crochet that on a pillow.
- Mary Cooper: [as the plane experiences turbulence] Would you like me to include you in my prayers?
- Sheldon Cooper: No, thanks. I don't need to seek help from an invisible man.
- Mary Cooper: You're right. You've got your invisible strings.
- Mary Cooper: Look, a chore chart. I made one of those. Y'all ignored it.
- Missy Cooper: They don't ignore it if you stop feeding them.
- Georgie Cooper: That was a *long* weekend.