Cyber Controller: You are proud of your emotions?
The Doctor: h yes.
Cyber Controller: Then tell me, Doctor, have you known grief and rage and pain?
The Doctor: Yes. Yes, I have.
Cyber Controller: And they hurt?
The Doctor: Oh yes.
Cyber Controller: I can set you free. Would you not want that? A life without pain?
The Doctor: You might as well kill me.
Cyber Controller: Then I take that option.
The Doctor: It's not yours to take; you're a Cyber Controller, you don't control me or anything with blood in it's heart!