The Mentalist (2008-) is an American crime procedural television series about a private investigator who uses his skills of observation to help the police solve crimes.
Lisbon: Seems like this whole thing has changed your mind about vengeance.
Jane: Has it?
Lisbon: "Revenge is for fools and madmen"?
Jane: Yeah, that was rather good, I thought. Total nonsense, but quite good nonetheless.