- Sheldon Cooper: President Siebert, how much do you know about physics?
- President Siebert: I'm a physicist.
- Sheldon Cooper: I would not have guessed that.
- President Siebert: I have a doctorate from Indiana University.
- Sheldon Cooper: That makes more sense, Well, don't worry, I'll go slow.
- Amy Farrah Fowler: You got me removed from my own project?
- Sheldon Cooper: Yeah, and it wasn't easy. Apparently, you're very difficult to replace. Just between you and me, they consider Dr. Park quite the step down.
- Dr. Park: I was trying to pick my moment to leave. This seems like it.
- Penny Hofstadter: So when was the last time you saw Howard in his astronaut uniform?
- Bernadette Rostenkowski: About a week ago.
- Penny Hofstadter: Really? What was the occasion?
- Bernadette Rostenkowski: Date night. We do a little role playing.
- Penny Hofstadter: What role do you play?
- Bernadette Rostenkowski: I am Ykatarina Nazdarovya, lonely Russian cosmonaut who is expert at physics and making of love.
- Sheldon Cooper: I'm having a problem in my marriage. I've upset my wife and I don't know how to make it right.
- Arthur Jeffries: And ya-and you're coming to me for advice? I-I upset my wife every time I woke up in the morning.
- Sheldon Cooper: I'm not coming to you. You're just a manifestation of my subconscious. I mean I'm actually coming to me.
- Arthur Jeffries: So you know everything I'm going to say.
- Sheldon Cooper: Yes, but it sounds wiser from you because you're old and glowing.
- Arthur Jeffries: Fine. Rule number one in a marriage - Don't go to bed angry.
- Sheldon Cooper: That makes sense.
- Arthur Jeffries: Rule number two in a marriage - If you don't recognize the shoes under your bed, they're not your shoes.
- Sheldon Cooper: Because they're her shoes?
- Arthur Jeffries: Ne-never mind. Just, just go with rule number one.
- Sheldon Cooper: I didn't know that Dagobah had delicatessens.
- Arthur Jeffries: Not good ones. Whatever you do, don't order the Reuben.