Eli Loker: I would like to sleep with you.
Dr. Cal Lightman: Ah, Eli Loker, Ria Torres. He's harmless, just always speak the truth about what's on his mind. What do you call it again?
Eli Loker: Radical honesty.

Whatcha call that, "Stupid on a plate?"

Lightman

Naomi: I have a habit of jumping into things to quickly
Lightman: If it's a gentleman you are after, you are in the wrong house love.

Every genius has his weakness, genius.

Lightman

Do you know what the first line of his book is? "Let there be Lightman."

Eli

You tell John Stafford this is over, but not in a negative way.

Lightman

You never trust anyone do you? That's why you will always be alone.

Emily

Ava Torres: You're super sexy, want to make out?
Cal Lightman: Absolutely darling, climb on board.

Ethics, Always so inconvenient.

Cal Lightman

Clara Musso: There seems to be a lot of chemistry there with your ex-wife
Cal Lightman: Yeah, well there's a lot of chemistry in Chernobyl.

Harris: What kind of car do you drive?
Lightman: Prius... It's deceptively fast.

Lightman: When you hear hooves...
Gillian: Think horses, not zebras.
Lightman: Either way, it's a stampede.

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.