Babylon 5

G'Kar: But there may be some dangers that threaten both our peoples, not to mention the Minbari, the Earthers, the League, and everyone else around here. Except possibly the Vorlons, I don't know what could threaten them, really.

G'Kar: Is she still alive? Londo: That is a very good question.

G'Kar: G'Quan spoke of a great war long ago, against an enemy so terrible it nearly overwhelmed the stars themselves. G'Quan said that before the enemy was thrown down, it dwelled in a system at the rim of known space. I searched for days, going from one system to another. Then, on dark deserted worlds, where there should be no life, where no living thing has walked in over thousand years, something is moving, gathering its forces, quietly, quietly, hoping to go unnoticed. We must warn the others, Na'Toth. After a thousand years, the darkness has come again.

G'Kar: Weep for the future, Na'Toth. Weep for us all. Na'Toth: Are you all right? G'Kar: I have looked into the darkness, Na'Toth. You can not do that and never be quite the same again. When you told me about the destruction of our base at quadrant 37, I knew that only a major power could attempt an assault of that magnitude. But none of the governments here could've done it. Which left only two possibilities: a new race, or an old race. A very old race.

Londo: Yes. But what happens if I may ask for another of these ... little demonstrations? Mr. Morden: Then we'll provide it. Simply choose your target. A colony, an outpost ... Londo: Why don't you eliminate the entire Narn homeworld while you're at it? Mr. Morden: One thing at a time, Ambassador. One thing at a time.

Londo: The destruction of the Narn base in Quadrant 37 is drawing quite a lot of attention. Mr. Morden: Yes, that was the intent. Londo: And you are absolutely certain that it can not be traced back to me? Mr. Morden: Oh, beyond a shadow of a doubt.

Londo: There you see. One deserts his post without any explanation; the other one picks the most breathtakingly inconvenient moment possible to explore new career options, like becoming a butterfly!