- Prof. John Robinson: What're you doing? Making yourself a necklace?
- Will Robinson: No. Maybe something for Penny. Girls get so gloopy sometimes. Can you imagine bawling because you imagine your imaginary friend is mad or scared or something? Only trouble is, some of these rocks are hard as diamonds.
- Mr. Nobody: I remember rocks. Rocks bubbling.
- Penny Robinson: These? But... but this is granite. It takes millions and millions of years to... You mean you're that old, already?
- Penny Robinson: Oh Mother, I thought you were the only one. I thought you really believed me, at least just a little bit.
- Maureen Robinson: Wha... Penny! Penny, of course I do! Now, I still do, and you know why? Well, I'll tell you a secret. When I was a little girl, I had a very special friend, too. His name was Mr. Noodles and he lived inside my teddy bear.
- Penny Robinson: What?
- Maureen Robinson: It's true. I know that you're the only one who'd understand how very very real Mr. Noodles was to me.
- Penny Robinson: Oh, Mother, that's the silliest thing I ever heard of! How can ANYONE live inside a teddy bear?
- Mr. Nobody: Penny? Penny? When a person can't talk anymore... When a person can't move anymore... Penny! Please move. Penny, please... don't die. Penny?
- Dr. Zachary Smith: [holding up Penny's diamond necklace] When I think of the value of these rocks back on Earth - oh, the pain, the pain.
- Penny Robinson: If you'd just let me see a little bit if you.
- Mr. Nobody: I don't... know how.
- Penny Robinson: But try! You just can't stay down here... until you die!
- Mr. Nobody: What is "die"?
- Penny Robinson: Well... I- I don't think I'm exactly sure, myself. But... when... someone can't speak anymore. Or... when someone can't move anymore. Like... before you could remember, maybe.
- Mr. Nobody: I'm going out to find them, Penny, whoever they are that did this, and I'm going to teach them a lesson.
- [last lines]
- Judy Robinson: [while everyone looks in awe at the transformation of Mr. Nobody into a stellar display] Don, what is pure cosmic force? What does it turn into?
- Maj. Don West: I don't know. There are a lot of things iI don't know.
- Prof. John Robinson: It's like a new Milky Way.
- Penny Robinson: Well, caterpillars can turn into butterflies can't they?
- Maureen Robinson: Oh John, look, Just look!
- Mr. Nobody: Good bye, Pen-nee, good bye, Pen-nee.
- Penny Robinson: Good bye, Mr. Nobody.
- Mr. Nobody: Good bye, good bye...
- Dr. Zachary Smith: I might have known it. You have as much Indian tracking blood in your circuits as I have.
- Penny Robinson: [hearing a voice in a cave] Well, how do you do?
- Mr. Nobody: Do.
- Penny Robinson: I'm just an echo, that's all.
- Mr. Nobody: Aaaaall?
- Penny Robinson: Echo?
- Mr. Nobody: E-cho?
- Penny Robinson: Only... where does it come from? Where?
- Mr. Nobody: Where! Where! Where. Echo. Echo!. Echo. Where. Echo. Hey! Hey! Where! Heyyyyyyyy!
- Maj. Don West: John, the laser guns. It's our only hope.
- Prof. John Robinson: We can't! If we let it get that close to the ship, we'll be blown apart.
- Will Robinson: The robot, dad. He has laser circuits.
- Prof. John Robinson: You hear that, Smith?
- Dr. Zachary Smith: Maximum firing level, circular range. Fire all directions on command.
- The Robot: Circuits armed and ready.
- Judy Robinson: Hurry up! It's getting closer!
- Maj. Don West: I just hope he can break that force apart.
- Prof. John Robinson: All right. Get him moving!
- Dr. Zachary Smith: March, my metallic hero. March!
- [Robot begins moving toward cosmic creature]
- Dr. Zachary Smith: Tell me when, sir. Tell me when.
- Prof. John Robinson: Not yet. Wait until he's close to its center.
- [Robot continues his advance]
- Prof. John Robinson: All right. Start firing and continue his marching.
- Dr. Zachary Smith: [Speaking on two way radio] Fire! March! Fire!
- [Robot unleashes devastating array of energy bolts on cosmic creature, but with no apparent effect]
- Dr. Zachary Smith: What's the matter?
- Maj. Don West: D'you hear that? It sounded like thunder.
- Dr. Zachary Smith: Sky seems clear enough.
- The Robot: [with a raging storm fast approaching] Environmental analysis report...
- Will Robinson: But, say it! Say it, will you? I mean, won't you please give us your analysis, my learned old friend?
- The Robot: Affirmative. Negative. Release of pure cosmic force with anti-matter core. It has anger. It will destroy us!
- Will Robinson: That's stupid. Forces and things don't get angry.
- The Robot: It has anger. It will destroy us!