[Kilbride] doesn't want you melting down when you realize you're the guinea pig of your adoptive mother. His words, not mine.

Nate [to Callen]

Nate: As you know, Hetty allows you to know only as much as necessary to serve her purposes.
Callen: Only too well.

Callen: They're going to hide behind national security?
Kilbride: They're funny that way.

Sam: He's stubborn.
Callen: Ah! Imagine that!

Then why does it look like Assault on Precinct 13 in here?

Fatima [to Rountree]

We're only on the planet for a little bit of time. So c'mon man. Let her go.

Rountree [to Walsh]

Sam: Honey.
Callen: I love you too. But what is it?

That's a great question. But I like to have a few beers before I start solving the world's problems.

Deeks [to Kensi]

I feel like a hamster on a wheel getting nowhere.

Sam [to Callen]

Callen: There better be some explanation.
Sam: Unless Rountree murdered someone this morning, there's no explanation for this.

People have certainly killed for less.

Kilbride

Shyla: It's OK to admit that a small part of you doesn't hate it here.
Kilbride: That will be a cold day in hell.

NCIS: Los Angeles Season 13 Quotes

If you go down this rabbit hole, G, you may not like what you find. You may even get lost.

Sam [to Callen]

You know how it's hard for you to tell when you're starting to annoy me. This is one of those times.

Sam [to Callen]