- The Doctor: Things end. That's all. Everything ends, and it's always sad. But everything begins again too, and that's... always happy. Be happy. I'll look after everything else.
- The Doctor: Why do they call him Spider-Man? Don't they like him?
- Grant: He was bitten by a radioactive spider, and guess what happened?
- The Doctor: Radiation poisoning, I should think.
- Grant: No. He got special powers.
- The Doctor: What? Vomiting, Hair loss and death? Fat lot of use.
- Lucy: Can you put me in touch with him?
- The Doctor: The Ghost?
- Lucy: Yeah, the Ghost.
- [Grant shakes his head]
- The Doctor: Mrs. Lombard, there are some situations that are just too stupid to be allowed to continue.
- The Doctor: With great power comes great responsibility. No man worthy of the title leaves a baby alone.
- The Doctor: Take a look at him. That's why you don't stand a chance. You want to know why? He's actually left-handed.
- [Grant is holding back the spaceship with his right hand]
- Grant: Sorry, instinct. I couldn't let go of this.
- [holds up the baby monitor in his left hand]
- The Doctor: Shall we pop over and have a look? Pretty sure no one's on board.
- Nardole: How do you know? Did you scan for life forms?
- The Doctor: No. All the lights are off .
- The Doctor: Take a good long look. It takes a moment to see it.
- Young Grant: See what?
- The Doctor: Superman and Clark Kent are one in the same person.
- Young Grant: Are you serious?
- The Doctor: Yeah, look, I drew specs on Superman.
- Young Grant: Everyone knows they're the same person.
- The Doctor: Well Lois Lane doesn't, and she's a reporter.
- The Doctor: You're not looking at anyone. Are you shy now? Is that floor really interesting?
- Teen Grant: I'm not shy. I just can't stop it.
- The Doctor: Can't stop what?
- Teen Grant: The x-ray vision.
- The Doctor: Oh.
- Teen Grant: I'm in hell, naked hell. I just can't look at people.