- Doctor Who: You're caught in an impasse of logic. You've discovered the recipe for everlasting peace - congratulations! I'm terribly pleased.
- Davros: The Movellan ship will never lift off! Soon my Daleks, carrying more than half a megaton of explosives, will press against the hull and I will simply activate this control to detonate.
- Doctor Who: Really? And how would you stop me activating that control before they reach their target?
- Davros: I would not.
- Doctor Who: Really?
- Dalek: [having approached the Doctor from behind, shouts] Do not move!
- Davros: You see, there's nothing you can do to stop it now.
- Doctor Who: One, two, three, four, five - I'll go alone. Ask me why.
- Tyssan: Why?
- Doctor Who: They're unconscious; also, I'm a very dangerous fellow when I don't know what I'm doing.
- Davros: When the Dalek ship arrives you will accompany us.
- Doctor Who: Oh, I'm sure they'll welcome me with open arm... I mean, they would welcome me with open arms if they had arms. Please, please! No offense meant at all.
- Doctor Who: All elephants are pink, Nellie is an elephant, therefore Nellie is pink. Logical?
- Davros: Perfectly.
- Doctor Who: You know what a human would say to that?
- Davros: What?
- Tyssan: Elephants aren't pink.
- Davros: Humans do not understand logic.
- Romana: So the first side that switches its computer off and does something irrational...
- Doctor Who: Wins the battle, yes. Make mistakes and confuse the enemy!
- Romana: [not impressed] Brilliant.
- Doctor Who: Yes
- Romana: Is that why you always win?
- Doctor Who: Yes. What?
- Romana: Because you always make mistakes.
- Doctor Who: Mistakes? Me? Well, perhaps once a century or so. Well, I have make the odd mistake.
- [the TARDIS starts to dematerialize]
- Romana: Not that switch!
- Doctor Who: What?
- [the TARDIS fails to dematerialize and reappears]