Frax: You are fortunate to live.
Tusa: So that Mentors can experiment on us?
Frax: Think of it as community service, Tuza.
Peri Brown: Oh... Oh, it's strange. Ever since we came to Thoros Beta I've been homesick. Well, not so much for a place but a time. Just wanna be back in my own time with people I love.
The Doctor: Where is everyone?
Mentor: There is only one subject here, in the implantation cubicle.
The Doctor: May I examine him? I have Crozier's permission.
Mentor: Oh, if you must, but try not to disturb him.
The Doctor: I shall be as quiet as the silence that is in the starry skies, only quieter still.
The Doctor: I'm sorry, I didn't catch your name the last time we met.
Lukoser: Dor... Dor...
The Doctor: Never mind. You can tell me later.
Yrcanos: His name is Dorf and you are scum.
The Doctor: No, actually I am known as "the Doctor."