First Witch: Wind shall rise.
Second Witch: And fog descend.
Third Witch: So leave here, all, or meet your end.
[wailing witches cackle and vanish]
Captain James T. Kirk: Spock. Comment.
Mr. Spock: Very bad poetry, Captain.
Captain James T. Kirk: A more useful comment, Mr. Spock.
Mr. Spock: What we've just seen is not real.
Captain James T. Kirk: That's useful.
DeSalle: [of the force field around the ship] Maybe we can't break it. But I'll bet you credits to navy beans we can put a dent in it.
Dr. McCoy: [examining Crewman Jackson] The man is dead.
Korob: [voice, through Jackson's open mouth] Captain Kirk, can you... hear me? There is a curse on your ship. Leave this place, or you will all... die.
DeSalle: Mr. Chekov, recalibrate your sensors. If you need help...
Chekov: I can do it, sir. I'm not that green.
Dr. McCoy: Three witches... what appears to be a castle, and a black cat.
Captain James T. Kirk: If we weren't missing two officers and a third one dead, I'd say someone was playing an elaborate trick-or-treat on us.
Mr. Spock: 'Trick-or-treat', Captain?
Captain James T. Kirk: Yes, Mr. Spock... You'd be a natural. I'll explain it to you one day.
Captain James T. Kirk: Bones... Doc?
[sees a skeleton next to 'Bones', which is, like them, chained to the wall]
Dr. McCoy: You were saying something about trick or treat...
Mr. Spock: There are ancient Earth legends about wizards and their familiars.
Dr. McCoy: Familiars?
Mr. Spock: Demons in animal form sent by Satan to serve the wizard.
Captain James T. Kirk: Superstition.
Mr. Spock: I do not create the legend, Captain. I merely report it.
Korob: Where did your race get this ridiculous predilection for resistance, hm? You examine any object, you, you question everything. Is it not enough to accept what is?
Korob: You are most, um... unpredictable. Hm. Well, perhaps I have made a, a small mistake. Nevertheless, you have passed the tests.
Dr. McCoy: Tests?
Korob: Yes. Our analysis of you may have been in some small way in error; but you were warned to stay away, and yet you came to save your comrades. That proves loyalty. Your bravery was tested and you did not frighten. And despite my failure with these bright baubles, I perceive that you cannot be bribed. In many ways you are quite admirable.
Korob: You are the, uh, different one, Mr. Spock. You do not think like the others. There're no colors to your patterns of logic, there's only black and white. You see all this around you and... yet you do not believe.
Dr. McCoy: He doesn't know about trick-or-treat.
Korob: I do not understand that reference. Therefore it also is of no importance.
Dr. McCoy: You kept Scott and Sulu as catspaws to lure us down here. How'd you know we'd come?
Korob: Oh, we didn't have to know. They knew.
Sylvia: You like to think of yourselves as complex creatures, but you're flawed. One gains admittance to your minds through many levels. You have too many to keep track of yourselves. There are unguarded entrances to any human mind.
Captain James T. Kirk: What now? You wave your magic wand and destroy my mind, too?
Sylvia: There's no real damage to the mind, Captain. Simply a drain of knowledge and will.
Captain James T. Kirk: You don't call that damage?
Sylvia: Why should I?
Captain James T. Kirk: You'd know, if you had compassion. A woman should have compassion. But I forget you're not a woman.
Sylvia: You are using me. You hold me in your arms and there is no fire in your mind. You're trying to deceive me! It's here, like words on a page. You are using me!
Captain James T. Kirk: And why not? You've been using me and my crew!
[he rejoins McCoy, Scott and Sulu]
Sylvia: You will be swept away. You, your men, your ship, your worlds!