The Large Hadron Collision


 * Sheldon: Alright, this game is called Traitors. I will name three historical figures and you will name them in order of the heinousness of their betrayal. Benedict Arnold, Judas, Dr. Leonard Hofstadter.


 * Sheldon: Given that Saint Valentine was a third century Roman priest who was stoned and beheaded, wouldn’t a more appropriate celebration of the evening be taking one’s steady gal to witness a brutal murder?


 * Penny: Okay, what’s the big surprise?
 * Leonard: Just a minute. This tray contains clues as to what you and I are going to be doing on Valentine’s Day.
 * Penny: Oh. Wow. Okay. Let’s see. We’ve got, uh, milk chocolate, Swiss cheese, fondue. My lactose-intolerant boyfriend is going to eat all this; then I’m going to climb on his back and rocket to the moon?
 * Leonard: No. But it does involve air travel. Okay, um, let me slice this Swiss cheese with my Swiss army knife, and then you can wash it down with a cup of Swiss Miss instant cocoa.
 * Penny: Okay, I’m starting to think Swiss is key here.
 * Leonard: Uh-huh.
 * Penny: We’re going to Disneyland and ride the Matterhorn?
 * Leonard: How does that involve air travel?
 * Penny: We’re going to Disney World and ride the Matterhorn?
 * Leonard: No.
 * Penny: Okay, sweetie, this started out fun, but I’m over it.
 * Leonard: We’re going to Switzerland to see the CERN supercollider! And ski. We’ll also go skiing.
 * Penny: We’re going skiing in Switzerland?!
 * Leonard: Well, you’ll ski, I’ll fall, but, yeah, we will be in Switzerland for Valentine’s Day.
 * Penny: Oh, my God, Leonard! That’s incredible!


 * Sheldon: Since I rarely hug, I am relying on your expertise regarding duration.
 * Penny: I think we're there.


 * Sheldon: It's you. I touched you!
 * Penny: Happy Valentine's day.