Rachel: The killer whale. He is a mammal with warm blood, found in every sea.
Rachel: I'd insisted on leaving South Harbor with them. I told myself that somehow I was responsible for Nolan's state of mind. That I had filled his head with romantic notions about a whale capable not only of profound grief, which I believed, but also of calculated and vindictive actions, which I found hard to be believe, despite all that had happened.
[Captain Nolan has just seen the orca kill a member of his crew after the orca knocked the house into the ocean. He then looks out to the water & sees the killer whale leaping out of the water, breaching]
Captain Nolan: You revengeful sonofabitch! You win!
[the orca keeps breaching, as if taunting Captain Nolan]
Captain Nolan: You want revenge? Well, you'll have it! I'll come out and fight you! You revengeful sonofabitch!
[Nolan's boat, the 'Bumpo', steams out of the little harbor the next morning with the fishermen watching as he goes to fight the orca]
Rachel: [while listening to Orca's sounds through a hydrophone] What is he saying?
Captain Nolan: You're me, he says... I'm you, he says... you're my... drunk driver... he says...
Umilak: It is known that they have great memory and even after many years they will always remember the human being who has tried to harm them.
Captain Nolan: Can you commit a sin against an animal?
Priest: Why, you can commit a sin against a blade of grass. Sins are really against oneself.
Rachel: He deliberately left you your boat because he wants to fight you alone on the sea.
Captain Nolan: [as the harpooned orca screams in pain] He sounds almost human...
Rachel: You're planning to capture and sell a fellow creature! He's like you - he has worm blood, he breathes air, he's a mammal, but with intelligence!
Rachel: There's a word for you.
Captain Nolan: And I've been called it. Many times.
Rachel: Did I tell you that that animal has a right to be left alone?
Captain Nolan: No, but I have a notion you're about to.
Captain Nolan: If you're so sure I can't catch a killer whale, why are you so upset?
Rachel: Listen, you won't catch one, but you might butcher a couple dozen in the attempt!
Captain Nolan: Oh, that's not my style at all.
Rachel: [after Orca's mate washes ashore, dead with Nolan's harpoon in her, mockingly to Nolan] You won't kill one. Its not your *style*.
Captain Nolan: I won't fight him at all.
Rachel: But you'll murder him - you'll sit here safe on the jetty, and shoot him through the eye? You're not a man, you're an animal! Its creatures like you science should be observing!
Captain Nolan: I brought this gun to shoot him. Yes, yes I did. But I knew when it came time to do it, I couldn't do it. So I got to thinking and I thought, Well if what-if what you say is right. That whales can communicate. Then I thought I'd look at him. Right in the eye. And I'd tell him the killing of his wife and his child was a terrible accident. That I didn't mean it. I didn't mean it. I'd tell him that I was sorry. I hope he'd forgive me.