Altaira Morbius: Where have you been? I've beamed and beamed.
Robby: Sorry, miss. I was giving myself an oil-job.
Altaira Morbius: Robby, I must have a new dress, right away.
Robby: Again?
Altaira Morbius: Oh, but this one must be different! Absolutely nothing must show - below, above or through.
Robby: Radiation-proof?
Altaira Morbius: No, just eye-proof will do.
Robby: Thick and heavy?
Altaira Morbius: Oh, no, Robby. It must be the loveliest, softest thing you've ever made for me, and fit in all the right places, with lots and lots of star sapphires.
Robby: Star sapphires take a week to crystallize properly. Would diamonds or emeralds do?
Altaira Morbius: Well, if they're large enough.
Robby: Five, ten, and fifteen carats, and on hand. I will run the dress up for you in time for breakfast. Sleep well, miss.
Altaira Morbius: Thank you, Robby. I don't care now whether I do or not!

Altaira: [swiming in a pool] Come on in.
Commander John J. Adams: I didn't bring my bathing suit.
Altaira: What's a bathing suit?
Commander John J. Adams: [quickly turning his back] Oh, murder!

Robby the Robot: If you do not speak English, I am at your disposal with 187 other languages along with their various dialects and sub-tongues.

Robby: Morbius. Morbius!
Dr. Edward Morbius: What?
Robby: Something is approaching from the southwest. It is now quite close.
[they run to the windows and look out, but see nothing]
Commander John J. Adams: Could Robby be wrong?
Dr. Edward Morbius: No. Never.
[an invisible force rips down the trees; Morbius closes the steel shutters over the windows]
Dr. Edward Morbius: I feel sorry for you, young man.
Commander John J. Adams: Feel sorry for your daughter, Morbius.
Altaira: It's listening.
[the monster pounds on the steel shielding, denting it]
Dr. Edward Morbius: Alta, go into my study.
Commander John J. Adams: You still refuse to face the truth.
Dr. Edward Morbius: What truth?
Commander John J. Adams: Morbius, that thing out there - it's you.
Dr. Edward Morbius: You're insane. How else would you have led it here, where Alta must see you torn to pieces?
Commander John J. Adams: You still think she's immune? She's joined herself to me, body and soul!
Altaira: Yes, and whatever comes, forever.
Dr. Edward Morbius: Say it's a lie. Shout, let it hear you out there! Tell it you don't love this man!
Altaira: Not even if I could.
[the steel shielding begins to break]
Dr. Edward Morbius: Stop it, Robby! Don't let it in! Kill it, Robby!
[Robby shorts out]
Commander John J. Adams: It's no use. He knows it's your other self.
[steel shielding breaks; they run]

Robby: Quiet please. I am analyzing.

Chief Engineer Quinn: I'll bet any quantum mechanic in the service would give the rest of his life to fool around with this gadget.

Commander John J. Adams: Dr. Morbius, just what were the symptoms of all those other deaths, the unnatural ones I mean.
Dr. Edward Morbius: The symptoms were striking Commander. One by one in spite of every safeguard my co-workers were torn literally limb from limb.
Commander John J. Adams: By what?
Dr. Edward Morbius: By some devilish thing that never once showed itself.
Commander John J. Adams: And the Bellerophon?
Dr. Edward Morbius: Vaporized as the three remaining survivors tried to take her off.
Commander John J. Adams: And yet in all these 19 years you personally have never again been bothered by this planetary force?
Dr. Edward Morbius: Only in nightmares of those times. And yet always in my mind I seem to feel the creature is lurking somewhere close at hand, sly and irresistible and only waiting to be reinvoked for murder.

Commander John J. Adams: Nice climate you have here. High oxygen content.
Robby the Robot: I seldom use it myself, sir. It promotes rust.

Commander John J. Adams: What is the Id?
Dr. Edward Morbius: [frustrated] Id, Id, Id, Id, Id!
[calming down]
Dr. Edward Morbius: It's a... It's an obsolete term. I'm afraid once used to describe the elementary basis of the subconscious mind.
Commander John J. Adams: [to himself] Monsters from the Id...
Dr. Edward Morbius: Huh?
Commander John J. Adams: Monsters from the subconscious. Of course. That's what Doc meant. Morbius. The big machine, 8,000 miles of klystron relays, enough power for a whole population of creative geniuses, operated by remote control. Morbius, operated by the electromagnetic impulses of individual Krell brains.
Dr. Edward Morbius: To what purpose?
Commander John J. Adams: In return, that ultimate machine would instantaneously project solid matter to any point on the planet, In any shape or color they might imagine. For *any* purpose, Morbius! Creation by mere thought.
Dr. Edward Morbius: Why haven't I seen this all along?
Commander John J. Adams: But like you, the Krell forgot one deadly danger - their own subconscious hate and lust for destruction.
Dr. Edward Morbius: The beast. The mindless primitive! Even the Krell must have evolved from that beginning.
Commander John J. Adams: And so those mindless beasts of the subconscious had access to a machine that could never be shut down. The secret devil of every soul on the planet all set free at once to loot and maim. And take revenge, Morbius, and kill!
Dr. Edward Morbius: My poor Krell. After a million years of shining sanity, they could hardly have understood what power was destroying them.
[pause]
Dr. Edward Morbius: Yes, young man, all very convincing, but for one obvious fallacy. The last Krell died 2,000 centuries ago. But today, as we all know, there is still at large on this planet a living monster.
Commander John J. Adams: Your mind refuses to face the conclusion.
Dr. Edward Morbius: What do you mean?

Commander John J. Adams: Whatever you know in here, your other self knows out there.
Dr. Edward Morbius: [angrily] I'm not a monster, you...
Commander John J. Adams: [grappling with Morbius] We're all part monsters in our subconscious, so we have laws and religion!