Penny: Damn, you've got more makeup than I do. You've got better makeup than I do. Yeah, I'm borrowing this.
Leonard: Hey, hey, hey. This is my Comic-Con makeup. I love you, but there are some things a man doesn't share with his girlfriend.

Leonard: Just think. Thanks to your hard work, an international crew of astronauts will boldly go where no man has gone before.

Penny: Well, does it bother you, me going out with one of your friends? 'cause you know, you and me.
Leonard: No, no that's the past. I'm really more of a right now kind of guy. You know, living in the moment. Although I do have to live a little in the future, 'case, well, that's my job. Of course, my fondness for classic science fiction does draw my attention backwards, but those stories often take place in the future. In conclusion, no, it doesn't bother me.

Sheldon: Why would the Chinese make our DVR record Paul Blart: Mall Cop?
Leonard: I don't know. It's a fat guy on a Segway. That's funny everywhere.

Penny: What's wrong with cute?
Leonard: It just makes things seem small. It diminishes them.
Penny: So you want me to stop calling your little tushie cute?
Leonard: You can try, but nobody's gonna believe you.

Howard: Look, I made Sheldon disappear. Ta-da.
Leonard: Next time, you should lead with that.

Howard: Maybe me and Bernadette aren't right for each other.
Leonard: Look, Howard, I'd say there's a lot of fish in the sea, but I watched you dangle your hook in the water for years. Do not throw her back.

Leonard: Hey, I am a young man in his sexual prime. Under the right conditions, I am capable of just, really crazy stuff.
Penny: Really? What is the craziest thing you've ever done with a woman? And the time you and I had sex in the ocean does not count.
Leonard: Come on, that's got to count. There was a really strong undertow. We could have died.

Leonard: Whoa, it's a little early to start dropping J-bombs, don't you think?

Penny: Wait, wait, just to be clear, when you guys say spa, does that mean the same thing as when regular people say it?
Leonard: Pretty much. Except we keep our shirts on in the sauna.

Stephanie: I just performed a Sheldonectomy.
Leonard: Careful, if you don't get it all, it'll only come back worse.

Leonard: What about the really long hug? What did that mean?
Penny: That wasn't a long hug.
Leonard: It was at least five Mississippis. A standard hug is two Mississippis tops.

Penny: Leonard, I didn't know you played the cello?
Leonard: Yeah, my parents felt that naming me Leonard and putting me in advanced placement classes wasn't getting me beaten up enough.

Leonard: Sorry.
Priya: For what?
Leonard: I don't know. When I'm in bed with a girl, it's just it's my go to response.

Howard: I think I'm gonna take her to miniature golf.
Leonard: Ah, well, I guess for you guys that's like regular golf.
Howard: Short jokes? Really? You're like a quarter of an inch taller than me.
Leonard: Yeah, and don't you forget it.