Howard: Step one, rapidly flip the calibration switch from the fully up to the fully down positions for at least ten times.
Sheldon: It actually says "at least"?
Howard: Yeah.
Sheldon: Why would they say "at least"? Is it 10 toggles? Is it 100 toggles? Is it 1,000 toggles? 10,000 toggles? 100,000 toggles?
Howard: Sheldon!
Sheldon: You see where I'm going with this.

Howard: Okay, the WiFi extender is on, the camera's on, they're both on the same network. We should be getting an image.
Sheldon: All I see is a black screen, and my own reflection. I look sad.

Bernadette: Well, now you get to go back as a successful scientist.
Amy: With a beautiful girl on your arm.
Sheldon: And a pointy hat sticking out of your eyeball.

Leonard: I'll take my chances.
Sheldon: Fine. I wonder if they make "I told you so" cards in Braille.

Amy: Leonard, have you ever given a high school commencement speech before?
Leonard: No. It's pretty exciting.
Sheldon: Aren't you afraid of being blinded?
Leonard: How would I be blinded?
Sheldon: At the end of the ceremony, all the students throw those pointed hats in the air. It's all "Pomp and Circumstance" until someone loses an eye.

Sheldon: If your bathroom floor counts as a carry-on, you're packed.

Sheldon: Greetings from Planet Earth. Just turn left at Alpha Centauri. You can't miss it.

Alien: That soft pink alien looks delicious. I could eat.
*Sheldon performs Vulcan salute*

Sheldon: Now, we can play this one of two ways. You can say, "Trains! Tell me more," or, you can just look at me like that and I'll start.

Sheldon: Anyway, if you're looking for Leonard, he's with Koothrappali.
Penny: No, actually, I came to talk to you.
Sheldon: How nice!

Howard: Now if we're talking about being left out, you guys went to Skywalker Ranch without us.
Sheldon: Oh, I recommend that too. That was a magical experience.

Leonard: Wait a minute. Sheldon spent a whole day with James Earl Jones and never told any of us.
Sheldon: I sure did. My goodness. From Jabba's head to ice cream with Darth Vader, I'm having a heck of a ride.

Sheldon: Clearly, good things happen when I'm in charge. Now, why don't you boys step aside, let me knock this project out.
Leonard: Sheldon, you're not in charge. Raj is in charge.
Sheldon: Leonard, who's really in charge? The person in charge or those who put him in charge.
Raj: He's right. If you think about it, we're all in charge.
Sheldon: No, the guy in charge is in ch-. Why is everyone so bad at these?

Leonard: Some times Raj and I feel pushed aside.
Raj: Yeah. Like when you took Sheldon to Texas and showed him all around NASA. You didn't even think to ask me and Leonard.
Howard: You know what, you're right. I should have asked you.
Sheldon: And if he does ask you, go. It's amazing.

Leonard: Okay, since we agree on the delivery system for the message, maybe we should talk about what the message could be.
Raj: Well, I think we should show what earthlings look like.
Howard: The plaque they sent up on the Pioneer probe had a drawing of a naked man and woman on it.
Sheldon: Yeah, I never cared for that. It's advertising to predator races just how soft and squishy *squeezes Leonard* we are.
Leonard: Squeeze yourself!
Sheldon: Oh, don't be offended. You know, of the four of us, you have the most veal-like consistency.