Barney: There's no way she's above the line on the hot-crazy scale.
Ted: She's not even on the hot-crazy scale. She's just hot.
Robin: Wait, hot-crazy scale?
Barney: Let me illustrate. A girl is allowed to be crazy, as long as she is equally hot. Thus, if she's this crazy, she has to be this hot. If she's this crazy, she has to be this hot. You want the girl to be above this line, also known as the Vicky Mendoza diagonal. This girl I dated, she played jump rope with that line. She'd shave her head, then lose ten pounds. She'd stab me with a fork, then get a boob job. I should give her a call.

Marshall: Barney, they're hot.
Barney: Oh, there is so much to teach you all. You have just become victims of... The Cheerleader Effect. Glad you asked. The Cheerleader Effect is when a group of women seems hot, but only, as a group. Just like with cheerleaders. They seem hot, but take each one of them individually? Sled dogs.
Ted: That's insane.
Barney: Take a good, hard look at each one of those girls. Individually.
Marshall: I don't know. The one on the end is kind of cute.
Lily: Yeah, she really is.
Barney: Also known as the Bridesmaid Paradox, Sorority Girl Syndrome, and for a brief window in the mid-'90s, the Spice Girls Conspiracy. Scary Spice indeed.

Ted: Barney, the three days rule is insane. I mean, who even came up with that?
Barney: Jesus.
Marshall: Barney, don't do this. Not with Jesus.
Barney: Seriously. Jesus started the whole wait 3 days thing. He waited 3 days to come back to life. It was perfect. If he have only waited one day, a lot of people wouldn't have even heard that he died. They'd be all, "Jesus, what up?" And Jesus would probably be, like, "What up? I died yesterday". And then they'd be all, "Uh, you look pretty alive to me, dude". And then he would have to explain how he was resurrected and how it was a miracle. And then, the dude would be, like, "Okay, whatever you say, bro".
Robin: Wow, ancient dialogue sounds so stilted now.
Barney: And he's not going to come back on a Saturday. Everybody's busy doing chores. Working the loom, trimming their beards. No. He waits the exact right number of days... Three.
Ted: OK, I promise, I'll wait three days. Just please stop talking.
Barney: Plus, it's Sunday, so everyone's in church already. They're all in there, "Oh, no, Jesus is dead". Then, bam! He bursts through the back door, runs up the aisle. Everyone's totally psyched. And, FYI, that's when he invented the high-five. Three days, Ted. We wait three days to call a woman because that's how long Jesus wants us to wait. True story.

Barney: So he stays home all the time not getting laid? No, see, that's what you do when you have a fiancée. He should be down here celebrating. He's free. He got that red-head-tumor removed.
Ted: You should write and illustrate children's books.
Barney: You know what Marshall needs to do? He needs to stop being sad. When I get sad, I stop being sad and be awesome instead. True story.

Robin: You have to go home and get to bed.
Barney: Oh, Robin, my simple friend from the untamed north, let me tell you about a little thing I like to call mind over body. You see, whenever I start feeling sick, I just stop being sick and be awesome instead. True story. Yeah, in two minutes, I'm going to pound a sixer of Red Bull, hop in a cab, play a couple of hours of laser tag, maybe get a spray-on tan. It's gonna be legen... Wait for it... [Barney falls asleep]

Barney: We're going to Sascha's.
Ted: Who the hell is Sascha?
Barney: Sascha. [points to security woman] She's having friends over for drinks at her house. It's gonna be legen- wait for it, and I hope you're not lactose intolerant 'cause the second half of that word is -dairy!

Ted: Okay. We have to start going someplace else. At this bar, I'm always going to be the guy who got left at the altar.
Marshall: This sucks.
Barney: Good Times.
Ted: Uh-oh. We lost Barney.
Robin: What do you mean?
Lily: There's a girl over there in a tight red sweater. So he's not listening to a word anyone's saying. Right, Barney?
Barney: Give Me a Break!
Ted: See, he figured out a while back he could fake an entire conversation just by saying titles of Black sitcoms from the '70s and '80s.
Barney: What's Happening?
Lily: Hey, Barney, want to go upstairs and do stuff to me that I won't even let Marshall do?
Barney: Ha. Diff'rent Strokes.

Marshall: Let me get this straight. You're really telling me that when you watch The Karate Kid, you don't root for Daniel-san?
Barney: Nope.
Marshall: Who do you root for in Die Hard?
Barney: Hans Gruber, charming international bandit. At the end, he died hard. He's the title character.
Lily: Okay, The Breakfast Club?
Barney: The teacher running detention. He's the only guy in the whole movie wearing a suit.
Robin: I got one. Terminator.
Barney: What's the name of the movie, Robin? Who among us didn't shed a tear when his little red eye went out at the end and he didn't get to kill those people? [sobbing] I'm sorry. That movie...
Ted: I am never watching a movie with you ever again.
Barney: They didn't even try to help him!

Ted: MacLaren's Bar, four years ago...
[flashback to MacLaren's four years ago. Ted and Barney are both wearing tuxedos:]
Barney: How do you keep a girl from becoming your girlfriend? Simple, the rules for girls are the same as the rules for gremlins.
Ted: Gremlins?
Barney: Gremlins. Rule number 1, never get them wet. In other words, don't let her take a shower at your place. Number 2, keep them away from sunlight. I.e., don't ever see them during the day. And rule number 3, never feed them after midnight. Meaning she doesn't sleep over and you don't have breakfast with her ever.

Ted: What the hell is "the sexless innkeeper"?
Barney: Ted, many a man - nay, many a soul - has their own tale of the sexless innkeeper. Why, I had run-in with one just last year. I even composed a poem about it. Would you care to hear it?
Ted: Not really.
Barney: T'was the night before New Year's, and the weather grew mean. It was 3:00 in the morning, and I was stranded in Queens. The tavern grew empty, the gas lights grew dim. The horse-drawn carriages were all but snowed in...
Ted: Wait. If this was last year, why are you acting like it was Oliver Twist?
Barney: Ted, it's a poem. Last call was approaching, and my fortunes looked bleak. Then I turned to my left and stifled a shriek. She had a peach fuzz beard and weighed 16 stone. She gobbled up hot wings and swallowed the bones. I muffled a scream and threw up in my mouth. I asked, "Where do you live?" And she said, "One block south." I swallowed my pride and six shots of whiskey, and prayed to the Gods that she wasn't too frisky. Back in her cave, she prepared us a snack. 'neath her mighty hooves, the floorboards did crack. But when she returned, she found a sound sleeper. And thus she became the sexless innkeeper.