From Avengers: Age of Ultron
Do you see the beauty of it? The inevitability? You rise, only to fall. You, Avengers, you are my meteor. My swift and terrible sword and the Earth will crack with the weight of your failure. Purge me from your computers; turn my own flesh against me.
[Hawkeye shoots a drone, only for another one to appear
It means nothing! When the dust settles, the only thing living in this world, will be metal.