Elena

“Rose Tyler: The time war ends.
Emperor Dalek: I will not die! I cannot diieee!
[we see Rose's eyes light up, and the Dalek Emperor and his entire fleet disappear in an explosion of golden dust]
The Doctor: Rose, you've done it, now stop.
[Rose stares straight ahead]
The Doctor: Just let go.
Rose Tyler: How can I let go of this? I bring life.
[we see Jack start breathing again and open his eyes]
The Doctor: But this is wrong! You can't control life and death!
Rose Tyler: But I can. The sun and the moon, the day and night... but why do they hurt?
[she is crying]
The Doctor: The power's gonna kill you and it's my fault!
Rose Tyler: I can see everything... all that is... all that was... all that ever could be.
The Doctor: [stands up] But that's what *I* see. All the time. And doesn't it drive you mad?
Rose Tyler: [Rose nods, barely able to speak] My head...
The Doctor: Come here.
Rose Tyler: ...is killing me.
The Doctor: I think you need a Doctor.
[He leans down and kisses her, and the golden light transfers from her to him through their lips]”
― Russell T Davies

“Cyber Leader: Daleks, be warned. You have declared war upon the Cybermen.
Dalek Sec: This is not war - this is pest control!
Cyber Leader: We have five million Cybermen. How many are you?
Dalek Sec: Four.
Cyber Leader: You would destroy the Cybermen with four Daleks?
Dalek Sec: We would destroy the Cybermen with one Dalek! You superior in only one respect.
Cyber Leader: What is that?
Dalek Sec: You are better at dying.”
― Russell T. Davies

“Dalek: I will talk to the Doctor.
The Doctor: Oh will you? That's nice. Hello!
Dalek: The Dalek strategem nears completion. The fleet is almost ready. You will not intervene.
The Doctor: Oh really? Why's that, then?
Dalek: We have your associate. You will obey or she will be exterminated.
The Doctor: No.
Dalek: Explain yourself.
The Doctor: I said, "No."
Dalek: What is the meaning of this negative?
The Doctor: It means, "No."
Dalek: But she will be destroyed!
The Doctor: No! 'Cause this is what I'm gonna do. I'm gonna rescue her. I'm gonna save Rose Tyler from the middle of the Dalek fleet, and then I'm gonna save the Earth. And then—just to finish off—I'm gonna wipe every last stinking Dalek out of the sky!
Dalek: But you have no weapons, no defenses, no plan.
The Doctor: Yeah! And doesn't that scare you to death? Rose?
Rose: Yes, Doctor?
The Doctor: I'm coming to get you.”
― Russell T. Davies

“Doctor Who: You want weapons? We're in a library. Books are the best weapon in the world. This room's the greatest arsenal we could have. Arm yourself!

(from Tooth and Claw in Season 2)”
― Russell T. Davies