There's something on your robe [when a red spot from a sniper sight appears]..

McGarrett [to Ramirez]

Grover: You do speak Spanish, right?
Danny: Spanish? I barely speak English.

Turn your nose up at Mr. Franklin and you get Mr. Heckler and Mr. Koch. They can be pretty persuasive.

Grover

Ramirez: You are chaos.
McGarrett: You really should meet my partner. You guys would get along great.

Chin: It was because of our dealings with Diego that Sara was taken.
Kono: Chin, you can't blame yourself.

Chin: It's funny. You're doing all this for your brother's honor and he had none.
Carlos: You didn't know my brother.
Chin: I know he tried to sell you out. He was going to give up Frontera, knowing that the DEA would use him to bring down your whole organization. He betrayed you, Carlos.

Chin: When I said goodbye to Sarah, I promised I'd see her again. Thanks for helping me keep that promise.
McGarrett: You're welcome.

Jerry: Oh, no!
McGarrett: Oh, no, what?
Jerry: I did it again. I was sleep eating. That explains that dream.

Grover: You're talking about car salesmen here.
McGarrett: So what?
Grover: They are masters of psychological warfare, coupled with the fact that they are all born liars. Have you ever bought a car before?

Grover: What's up is I just found the smoking gun.
McGarrett: Interesting choice of words, considering the victim had his head bashed in.

Kamekona: This thing got seat warmers?
Burnett: We don't order any with that feature. It's hardly necessary in a warm climate like Hawaii.
Kamekona: Dude, when you're on a long haul, your butt falls asleep. You need your posterior stimulated.

McGarrett: Tell me you know how to swim.
Danny: I know how to swim. I swim for survival, not for fun.

Hawaii Five-0 Quotes

I just wanted to tell you I'm so sorry, so sorry.

Danny [to Marie]

Dealer: Game's closed unless you have an invitation.
Grover [holding up his badge]: Here's my invitation. It's even engraved.