Here's the problem, Martin Walker is a psychopath and probably a killer. Just though you should know.

Cal Lightman

Ria: You have an incredible story.
Farida: Thank you.
Ria: I mean, everything you've done.
Eli: Changing the world through peaceful resistance. You're like Gandhi. Except you don't look like a malnourished old man.
Farida: You're too kind.

Eli: She wanted to sign my book. I think we had a connection.
Ria: Oh yeah. I guess Ugandan women can't resist a guy with a girly drink.

(to Gillian) You know, you were very good back there, with Mrs. Burch. Very nurturing. Maybe you should get a puppy. I could talk to Obama's people.

Cal

Hughs: It's been two hours. You think we can trust that pervert?
Cal: Yeah. In my experience, self-castrating pedophiles generally tell the truth.

Farida: Do you bring all your dates here?
Eli: Just the Ugandan peace activists.

Russian spies? Oh what's next? Duran Duran? Parachute pants? Because I love the eighties.

Eli

Ria: When a person's facial expression is not symmetrical across their face, it is likely that they are pretending to feel the emotion. From your article in The Journal of Behavioral Science, 2001.
Cal: Sucking up's not your strong suit, is it?

Ria: You never told me about the eyebrow plucking thing. Where did you read about that?
Cal: Nowhere.
Ria: Why not?
Cal: Because it's complete crap.

Cal: 94th percentile. What did she do differently?
Ria: I can tell you one thing. She got murdered the day before she took the test.

Gillian: It's a possibility but I'll need to assess his psychological state prior to the crash. Do you have any old video tape of him?
NASA Director Schaumburg: We're the Federal Government. We record everything.

Cal: (to Ria) Oh look, now you're embarrassed. Well you have every reason to be. You did get it wrong didn't you? Sergeant Scott didn't rape Sheila Lake.
Gillian: Cal!
Cal: She's the one making snide remarks. Look at her face.
Ria: How do people work here?

Lie to Me Quotes

Weil: You haven't done enough muck-raking for one day?
Ria: Sir. We don't think you were doing anything sexual at that club, because, I believe this escort, Melissa, who you paid for time with-
Weil: What about her?
Ria: She's your daughter.

Gillian: Do you still have that note, that I brought you? I want it for my office.
Cal: (handing over the note) You really are a pack rat.
Gillian: You could have just told me what this was for.
Cal: No. You're a terrible liar.
Gillian: Normal people think that's a good thing.