So are they some form of life, or are they machines?" "At the chemical level all living things can be construed as machines. - Robert Charles Wilson

But you're a Philosopher!" Julian exclaimed at one point. "This is Philosophy, not Religion, since you rule out supernatural beings—you know that as well as I do!"
"I suppose it is Philosophy, looked at from one angle," Stepney conceded. "But there's no money in Philosophy, Julian. Religion is far more lucrative as a career.

We might have destroyed ourselves, but at least it would have been our own fault."
"Would it, though? Whose fault exactly? Yours? Mine? No, it would have been the result of several billion human beings making relatively innocuous choices: to have kids, drive a car to work, keep their job, solve the short-term problems first. When you reach the point at which even the most trivial acts are punishable by the death of the species, then obviously, obviously, you're at a critical juncture, a different kind of point of no return.

I want them not to forget. Which is, I suppose, what all aged veterans want. But they’ll forget. Of course they will. And their children will know less of us than they do, and their children’s children will find us barely imaginable.
Which is as it should be. You can’t stop time.