Mike: That's ignition. I love this part.
Dimitri: Me, too.
Howard: I have strongly mixed feelings.

Howard: So, I got the craziest e-mail this morning.
Raj: I don't mean to burst your bubble, dude, but those penile enlargement pills do not work.
Howard: Believe me, I know.

Howard: The e-mail I got was from the office of Stephen Hawking.
Leonard: You're kidding.
Raj: Why?
Howard: He's coming to the university for a couple weeks to lecture, and he's looking for an engineer to help maintain the equipment on his wheelchair.
Leonard: That's amazing. You'll be like his pit crew. A word of caution, I would not do your Stephen Hawking impression in front of him.
Howard: (imitating Stephen Hawking) You're right. I suppose that could be considered offensive.

Howard: I'll give your paper to Professor Hawking.
Sheldon: Great, thank you. Oh, that's terrific.
Howard: But in exchange, I'd like you to do a few things for me.
Sheldon: What kinds of things?
Howard: Are you familiar with the 12 labors of Hercules?
Sheldon: Of course.
Howard: You should be so lucky.

Howard: Here is a black light to check them. And for your own peace of mind, you might not want to shine that around the rest of the room.

Howard: What's the matter?
Bernadette: Every time I spend the night, your mom slaps me on the behind and says, go get 'im.
Howard: It's not her fault. She's getting hormone replacement therapy. Makes her crazy horny.

Howard: Oh, guys, I just remembered. I got you some Hawking souvenirs.
Leonard: What are these?
Howard: Gears and springs from his wheelchair. Pretty cool, huh?
Raj: Wow, that's amazing.
Howard: Yeah, I made an adjustment on the motor drive and when I was putting it back together I could not for the life of me figure out where they went.

Howard: All right, Sheldon. There's only one thing left I want you to do. Don't worry, it's an easy one.
Sheldon: Okay.
Howard: Give me a compliment.
Sheldon: Fine. You have very tiny hands.
Howard: No, about my job. I want you to tell me I'm good at what I do.
Sheldon: You're obviously good at what you do.
Howard: Well, then why are you always ripping on me?
Sheldon: Oh, I understand the confusion. I have never said that you are not good at what you do. It's just that what you do is not worth doing.
Leonard: It's nicer than anything he's ever said to me. I'd take it and run.
Howard: Thank you, Sheldon.

Howard: That's not true. My happiness is not dependent on my best friend being miserable and alone.
Raj: Thank you.
Howard: Although, I'd be lying if I said it wasn't a little bit of a perk.

Raj: You know what? Even though I don't have a girlfriend, I can still have a good time on Valentine's Day.
Howard: Trust me, you can't. I've tried.
Raj: No, no, no, I’m going to have a me day. First I’m going to go to one of those spas in Koreatown, take a steam and get a massage. Then I’m going to stop at a pet store and get licked by puppies.

Raj: Guys, help me.
Howard: Sheldon, come on.
Leonard: Yeah, it's just one sneeze. (Raj sneezes again) You're on your own.
Howard: See you, buddy.

Howard: Ma, Ma, calm down. Listen to me. I know it says click with the mouse, but on a laptop, the trackpad is the mouse. Now, put your finger on it. Doesn't matter which finger. Good choice. Now move it down to your e-mail icon. Yeah, the little envelope. What do you mean, what does it look like? It looks like an envelope! Fine, you don't like the computer, don't use it! Sure, we can exchange it for a salad spinner. Goodbye!

Penny: Look, can't you just let him play with you until bedtime?
Leonard: We're not playing. This is real work.
Howard: We're going to be hundred-aires.

Sheldon: It's not cool. It's a childish trick designed to confuse and intrigue simpletons. How'd you do it?
Howard: A magician never reveals his secrets. But surely a future Nobel prize winner can figure it out.
Sheldon: Fine. Give me a second.
Howard: You ever notice when he thinks real hard, it smells like bacon?

Howard: And was your card the jack of diamonds?
Penny: Oh, unbelievable! Know how he did it yet?
Sheldon: Umm...
Penny: Aww, he has the same look my little nephew gets when he can't figure out how I got his nose.
Howard: You know, I have some remedial magic tricks that might be more your speed. Like, ooh, look! The pencil's rubber!