CSI: Crime Scene Investigation Season 13 Episode 10

Donna: I heard you got your man.
D.B.: Yeah. Thanks to you. Little help from DNA.
Donna: You don't see genealogy as a pure science, do you, Mr. Russell?
D.B.: I wouldn't say that. It is, after all, a systematic pursuit of knowledge, right? Seeking an understanding of who we are and where we came from. I mean, that sounds like science to me. Maybe not pure, but...
Donna: Well, if you ever need a little systematic pursuit of knowledge, you know where to find me.

Donna: You said on the phone that you had some family history for me?
Morgan: I did, and it's on my desk. But, I'm so sorry, we have to get to a crime scene.
Donna: Oh, that's all right. You go do what you have to do, and I'll work here. Believe me, there's a lot of Brodys out there.
Morgan: Oh, Brody's actually my stepfather's last name. I'm interested in Ecklie.
Donna: Oh, your biological father. Of course.
Greg: Don't tell me. (referring to Conrad Ecklie) You still trying to prove he's not your dad? Uh, just kidding.

Greg: You know, I think I should drive this time.
Morgan: Oh, 'cause you're scared of going more than 20 miles per hour?