Leonard: Okay, now that you're back on the team, let's get you caught up.
Sheldon: Before you begin, let me say again how deeply sorry I am for my earlier behavior, and how much I respect and admire your leadership.
Leonard: Thank you. So as you can see, not only can you store your favorite equations, but you can forward them to your friends or post them on Facebook right from the app.
Sheldon: Well, I must say, I am impressed.
Leonard: Thanks.
Sheldon: You all have clearly put in a lot of hard work.
Howard: We have.
Sheldon: As a result, you have taken the most important step on the road to success, learning what not to do. Now, let's start fresh. Howard, we're going to need some tea.

Raj: I don't like bugs, okay. They freak me out.
Sheldon: Interesting. You're afraid of insects and women. Ladybugs must render you catatonic.

Sheldon: Scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and as it always has, rock crushes scissors.

Sheldon: Why are you crying?
Penny: Because I'm stupid.
Sheldon: That's no reason to cry. One cries because one is sad. For example, I cry because others are stupid, and that makes me sad.

Sheldon: I'm not saying that all senior citizens that can't master technology should be publicly flogged. But, if we made an example of one or two it might give the others incentive to try harder.

Raj: Ooh, Leonard is going all alpha nerd on Sheldon's ass.

Leonard: I had a great idea. Do you know how we're always having to stop and solve differential equations, like when you're doing Fourier equations or using the Schroedinger equation?
Sheldon: Howard doesn't, he's only an engineer.