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.
Kirk: What makes you think you're a man? You're an overgrown jack rabbit, an elf with a hyperactive thyroid.
Spock: Jim, I don't understand.
Kirk: Of course you don't understand. You don't have the brains to understand. All you have are printed circuits.
Spock: Captain, if you'll excuse me.
Kirk: What can you expect from a simpering, devil-eared freak, whose father was a computer and whose mother was an encyclopedia?
Spock: My mother was a teacher, my father an ambassador.
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...
Kirk: You're a traitor from a race of traitors, disloyal to the core, rotten like the rest of your sub-human race – and you've got the gall to make love to that girl.
Spock: That's enough.
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 a circus, Spock, not a starship – right next to the dog-faced boy.