Avengers: Age of Ultron2015

[The Maximoff twins have just discovered Ultron's plan to bring about humanity's extinction; Wanda read Ultron's mind and had a vision of a meteor striking Earth]

Wanda:
[Horrified] How could you?

Ultron:
How could I what?

Wanda:
You said we would destroy the Avengers. Build a better world.

Ultron:
It will be better.

Wanda:
When everyone is dead?

Ultron:
[Angry] That is not–! [calms himself] The human race will have every opportunity to improve.

Pietro:
And if they don't?

Ultron:
Ask Noah.

Wanda:
You are a madman.

Ultron:
There were more than a dozen extinction-level events before even the dinosaurs got theirs. When the Earth starts to settle, God throws a stone at it. And believe me, He's winding up. We have to evolve. There is no room for the weak.

Pietro:
And who decides who's weak?

Ultron:
Life. Life always decides.