Dr. Edward Morbius: Altaira, I specifically asked you not to join us for lunch.
Altaira: Lunch is over. You didn't say anything about not coming in for coffee. Well, you didn't, did you?

Dr. Edward Morbius: Do you understand the mechanism, Robby?
Robby: Yes, Morbius. A simple blaster.

Dr. Edward Morbius: Guilty! Guilty! My evil self is at that door, and I have no power to stop it!

Dr. Edward Morbius: How ironic that a simple scholar, with no ambition, beyond a modest measure of seclusion, should out of the clear sky, find himself besieged by an army of fellow creatures, all grimly determined to be of service.

Dr. Edward Morbius: In times long past, this planet was the home of a mighty, noble race of beings who called themselves the Krell. Ethically and technologically they were a million years ahead of humankind, for in unlocking the meaning of nature they had conquered even their baser selves, and when in the course of eons they had abolished sickness and insanity, crime and all injustice, they turned, still in high benevolence, upwards towards space. Then, having reached the heights, this all-but-divine race disappeared in a single night, and nothing was preserved above ground.

Dr. Edward Morbius: My poor Krell.

Dr. Edward Morbius: One cannot behold the face of the gorgon and live!

Dr. Edward Morbius: The fool, the meddling idiot! As though his ape's brain could contain the secrets of the Krell!
Altaira: [shocked] Father, he's *dead*!
Dr. Edward Morbius: He was warned, and now he's paid! Let him be buried with the other victims of human greed and folly!
Altaira: [coldly] Morbius. You wanted me to make a choice. Now you've chosen for me.
Dr. Edward Morbius: Alta?
Altaira: [to Commander Adams] I'm ready to go with you, darling.
[She runs up the stairs]
Dr. Edward Morbius: Altaira! No!

Dr. Edward Morbius: Yes, a single machine, a cube 20 miles on each side.

[Lt. Farman offers the brilliant but innocent Altaira some sugar for her coffee]
Altaira: But you keep helping me. After all, you're not Robby.
Lt. Farman: [chuckles] I wouldn't mind being Robby in certain ways. Uh, that's only in *certain* ways, of course.
Altaira: I can see that was probably very clever, but I don't seem to understand it.
Lt. Farman: There's no rush.