• Morgan's mother telling him that he owes her some grandbabies.
• Morgan confronting Buford about sexually assaulting him as a kid, and doing the same to kids over the years, and also about killing any child that showed interest in telling anyone about it.

• (Reid's rocket flies and hits Prentiss on the forehead)

Prentiss: Uh! Ah! What?!
Reid: I'm so sorry Emily!
Prentiss: What was that?
Garcia: Don't you recognize a rocket when you see one?
Reid: I...I...I was merely demostrating a physics law. I...I...I didn't mean ta'...
Prentiss: Ooooo! Show me!

• (Reid's rocket lands at Hotch's feet)

Hotch: Physics Magic? Reid: Yes sir. Hotch: Reid, we talked about this... Reid: I'm sorry sir. (Hotch hands Reid the rocket tube) Hotch: But your starting to get some distance though (Reid smiles and Hotch turns away smiling) Prentiss: So he does have a sense of humor? Reid: Sometimes

• Morgan: "Call me Agent Morgan."
  Det. Gordinski: "You'll always just be Derek to me."
  Morgan: "And you'll always be a racist son-of-a-***** to me."

• (Gordinski places snapshots of Morgan first of him at a grave and then in front of the Youth Center watching the kids play ball in front of Morgan)

Morgan: (laughs) What've you got? A crush on me all of a sudden?

• JJ: "This is all just coincidence."
  Det. Gordinski: "Heck of a lot of coincidences!"
  Prentiss: "It's purely circumstantial."
  Det. Gordinski: "So is a fingerprint! "
  

• Gideon: "I don't like them calling him a suspect."
  Hotch: "Me neither."

• Reid: "Actually, law enforcement officials are just as probable statistically to commit a crime as anyone else. You look at the cross-section of a society there's a general population and a small fraction of this percentage."
  Prentiss: "He's not actually saying he believes Derek is involved in this."

• Hotch: "Since when is a criminal history of a suspect not relevant?"
  Gideon: "You just called him a suspect."

• Carl Buford: (being handcuffed) "Derek, isn't there something you can do for me?!"
  Morgan: "You go to hell."

• Carl Buford: "Are you saying I had nothing to do with making you who you are?"
  Morgan: "No, Carl, actually I’m saying that you had everything to do with making me who I am. Because of you I’m somebody who gets to spend the rest of his life making sure that guys like you go down." ----
  
  
• Morgan: "And you feel like you have to do everything you can for him because he’s the closest thing you have to a father."

• Morgan: "I felt responsible for him, I mean I was the one who found him, right? "

• Morgan: "The only body I'd seen before that was my father, and I was 10."

• Morgan: "One kid steps up and breaks the dam, just one, and then another one, and another one, because they're not afraid of you anymore."

• Morgan: "God, I was so afraid of you. I was afraid of the police. I was afraid of losing everything I was gaining."

• Music of Season 2
  

• Writers & Directors for Season 2