- Jennifer Jareau: [opening quote] "Every man has his secrets sorrows, which the world knows not and oftentimes we call a man cold when he's only sad"- Henry Wadsworth Longfellow
- Aaron Hotchner: How many boats are there on Lake Mead?
- Dr. Spencer Reid: 1908
- Kate Callahan: Come on! You just know that?
- Dr. Spencer Reid: Yeah, there are 1908 boats on Lake Mead
- Kate Callahan: Where did you get that number?
- Dr. Spencer Reid: Based on the population density of the area, I estimated
- Kate Callahan: You guessed! I mean: is this guy really a genius or does he just says things with authority and we all believe him?
- Derek Morgan: Oh wow, thank you! Ten years! It took ten years for someone to finally have my back. Alright Einstein, she just called you out, bring it!
- Dr. Spencer Reid: Look it up!
- David Rossi: I am... And the kid's right!
- Derek Morgan: Ah
- Dr. Spencer Reid: [to Kate] I accept your apology.
- [to Derek]
- Dr. Spencer Reid: Blow it up.
- Derek Morgan: Never!
- Aaron Hotchner: [Hotch secretly blows it up with Reid]
- Penelope Garcia: All this talk of cold makes me cold. Is that weird?
- Derek Morgan: Nothing weird about that, Baby Girl!
- Dr. Spencer Reid: He'd be a psychrophile then, someone with a sexual fetish for the cold
- Kate Callahan: So let me get this straight: we're saying that there is a serial killer inside the cult?
- David Rossi: Talk about a needle in a needle stack!