Amy: Well, we only have two months to find a venue, and I had a thought. What about the Athenaeum club at Caltech?
Sheldon: Albert Einstein was a member there.
Amy: It's beautiful.
Sheldon: Yeah, and Albert Einstein was a member there.
Amy: It's close.
Sheldon: And Albert Einstein was a member there.
Amy: And Albert Einstein was a member there.
Sheldon: Ah. Now you sound like a woman who wants to get married.

Sheldon: Boy, you're wound awfully tight for a man who just had sexual intercourse.

Sheldon: Well, how about this? For $100,000, I will design the flag of your house or apartment. And for $1 million, I will come over and tell you what's wrong with you.
Leonard: Aw, and all these years, I've been getting that for free.
Sheldon: Don't be smug, Leonard. That's one of the things that's wrong with you.

Raj: This baby's got a ten-inch diameter with f/10 ACF optics.
Howard: And tonight Mercury is at its highest elongation.
Sheldon: It makes far-away things seem close, and Mercury is a planet.
Penny: I know Mercury is a planet. But the-the other thing was helpful.

Penny: This is just to give you ideas. You know, do-do you want something simple and elegant? I mean, do you want a train?
Sheldon: [entering the apartment] Ooh, we're talking about trains.
Amy: Not the kind of trains you like.
Sheldon: Oh, I like all kinds of trains: steam, diesel, coal, elevated, bullet. I defy you to name a train that I don't like.
Penny: The kind on the back of a wedding dress?
Sheldon: I did not see that coming. Good job.

Sheldon: Hello, Leonard.
Leonard: Hi.
Sheldon: Are you doing anything?
Leonard: No. I'm just sitting here at my desk typing on my computer for nothing.
Sheldon: That was my guess, but I didn't want to assume.

Stuart: All right, let's see what you got. Huh. Is this a complete run of Todd McFarlane's Spawn?
Sheldon: (gasps loudly) Yes.
Stuart: Ooh, look at this. Giant-Size X-Men number one, Len Wein's relaunch of the franchise.
Sheldon: Yeah. I know what it is. I'm the one who bought it, bagged it, boarded it and taped it shut while wearing white cotton gloves.

Howard: Oh, did your mom pack your lunch?
Sheldon: (chuckles) Of course not. Do you know how much it costs to pack a tuna fish sandwich in dry ice and overnight it from Texas? Well, I do, and my mother says it's too expensive.

Raj: I like tuna fish.
Sheldon: Do you want it? I'll sell it to you for $5,000.
Leonard: How's the fundraising going?
Sheldon: Oh, that depends. Raj, was that a "yes"?
Raj: No.
Sheldon: It's going badly.

Amy: That was Wil Wheaton. He's really excited about tomorrow.
Sheldon: As am I. If you'd have told me as a child that an actor from Star Trek would be officiating my wedding, I would've said, "Ooh, William Shatner?" And if you'd have said, "No, Wil Wheaton," I'd have said, "Well, did you even try William Shatner?" And if you'd have said, "Yes, but he costs too much money," I'd have said, "Ah, well, Wil Wheaton's good, too."

Mark Hamill: Congratulations on your wedding.
Sheldon: Thank you. When this is over, I have 4,000 things for you to sign.

Amy: Is it from one of your dumb sci-fi shows?
Sheldon: Uh, none of the sci-fi shows I watch are dumb.
Amy: Sheldon.
Sheldon: Okay, Westworld. But this has nothing to do with that show, other than it's also inexplicable.

Sheldon: Leonard, I need to tell you something. I'm having an affair.
Leonard: Okay.
Sheldon: You have to swear not to tell anybody.
Leonard: Okay.
Sheldon: You are the only one who knows. Uh, well, you and Rita, the cafeteria lady who has been giving me more than Tater Tots.

Penny: What would you like to do, Sheldon?
Sheldon: The only fitting send-off: a Viking funeral.
Leonard: You mean, like, push it out into a lake and shoot it with a flaming arrow?
Sheldon: This guy gets it.
Penny: How about a bathtub and a match?
Sheldon: How about a bathtub and a flaming arrow?
Amy: How about a bathtub, a match and an ice-cold Yoo-hoo after?
Sheldon: Sold.

President Siebert: You know, Caltech has 38 Nobel laureates. If you win, you and Amy will be 39 and 40.
Sheldon: Ooh! Dibs on 39.
Amy: What's the difference?
Sheldon: Wha- You are right, there is no difference at all.