- [Opening narration]
- Capt. Kirk: Space, the final frontier. These are the voyages of the starship Enterprise. Its 5-year mission: to explore strange new worlds, to seek out new life and new civilizations, to boldly go where no man has gone before.
- Capt. Kirk: All right, you mutinous, disloyal, computerized half-breed. We'll see about you deserting my ship.
- Spock: The term "half-breed" is somewhat applicable, but "computerized" is inaccurate. A machine can be computerized, not a man.
- Capt. Kirk: What makes you think you're a man? You're an overgrown jackrabbit. An elf with a hyperactive thyroid.
- Spock: Jim, I don't understand...
- Capt. Kirk: Of course you don't understand. You don't have the brains to understand. All you have is printed circuits.
- Spock: Captain, if you will excuse me.
- [Tries to activate the transporter]
- Capt. Kirk: [blocks Spock's way and interupts] What can you expect from a simpering, devil-eared freak whose father was a computer and his mother an encyclopedia.
- Spock: My mother was a teacher. My father an ambassador.
- Capt. Kirk: Your father was a computer, like his son. An ambassador from a planet of traitors. The Vulcan never lived who had an ounce of integrity...
- Spock: Captain, please don't...
- Capt. Kirk: You're a traitor from a race of traitors. Disloyal to the core. Rotten! Like the rest of your subhuman race. And you've got the GALL... to make love to that girl!
- Spock: That's enough.
- Capt. Kirk: Does she know what she's getting, Spock? A carcass full of memory banks who should be squatting on a mushroom? Instead of passing himself off as a man? You belong in the circus, Spock, not a starship. Right next to the dog face boy!
- [Spock begins beating the stew out of Kirk - he picks up a stool, ready to hit Kirk, then stops - the spore's influence is gone]
- Capt. Kirk: Had enough? I never realized what it took to get under that thick hide of yours. Anyhow, I don't know what you're so mad about. It isn't every first officer who gets to belt his captain... several times.
- Spock: You did that to me deliberately.
- Capt. Kirk: Believe me, Mr. Spock. It was painful. In more ways than one.
- [Grabs his hurting arm]
- Spock: The spores. They're gone. I don't belong anymore.
- Capt. Kirk: You said they were benevolent and peaceful. Violent emotions overwhelm them, destroy them. I had to make you angry enough to shake off their influence. That's the answer, Mr. Spock.
- Spock: That may be correct, Captain, but trying to initiate a brawl with over 500 crewmen and colonists is hardly logical.
- Capt. Kirk: I had something else in mind. Can you put together a subsonic transmitter? Something we can hook into the communication station and broadcast over the communicators?
- Spock: It can be done.
- Capt. Kirk: Good. Let's get to work.
- Spock: Captain! Striking a fellow officer is a court-martial offense.
- Capt. Kirk: Well, if we're both in the brig, who's gonna build the subsonic transmitter?
- Spock: That is quite logical, Captain.
- Capt. Kirk: You'd make a splendid computer, Mr Spock. Spock
- Spock: [taken aback] That is very kind of you, Captain!
- [repeated line]
- James T. Kirk: Beam me up, Scotty. - This line was never actually spoken in the television series.
- Capt. Kirk: There's no such thing as the unknown- only things temporarily hidden, temporarily not understood.