Classic Sheldon
Leonard: You can catch more flies with honey than vinegar
Sheldon: You can catch even more flies with manure, what's your point?
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Sheldon: Why are you crying?
Penny: Because I'm stupid
Sheldon: That's not a reason to cry. One cries because one is sad. For e.g. I cry because others are stupid and it makes me sad
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Penny: Can you just tell me what Leonard does?
Sheldon: Leonard is attempting to learn why sub-atomic particles move the way they do
Penny: Really, well that doesn't sound much complicated.
Sheldon: It's not, that's why Leonard does it
Leonard: So, this is nice. First time we've all gotten together to eat.
Amy: (to Sheldon) You're right. He's a festival of humdrum chitchat.
Leonard: Okay, that's all I got. Howard, you're up.
Wolowitz: Um, tell us about your work, Amy.
Amy: I doubt you'd understand. Sheldon tells me you only have a master's degree.
Wolowitz: Raj, do you have any questions for Amy?
Raj: (shakes his head)
Amy: I'm curious as to why we're not eating alone.
Sheldon: They can't function without me. I'm the social glue that holds this little group together. (turns to Leonard, Howard, and Raj) You're welcome.
Sheldon: You know, in difficult times like this, I often turn to a force stronger than myself.
Amy: Religion?
Sheldon: Star Trek.