from P.D.Ouspensky In Search of the Miraculous:

I spoke to our people about  these lorry loads of crutches for not yet torn off legs and of my thoughts about them at the meeting.

“What do you expect?” said G. “People are machines.Machines have to be blind and unconscious., the cannot be otherwise, and all their action have to correspond to their nature. Everything happens. No one does anything. Progress and civilization in the real meaning of these words, can appear only as the result of conscious efforts. They cannot appear as the result of unconscious mechanical actions. and what conscious effort can there be in in machines? And if one machine is unconscious, then a hundred machines are unconscious, and so are a thousand machines, or a million. And the unconscious activity of a million machines must necessarily result in destruction and extermination.

It is precisely in unconscious involuntary manifestations that all evil lies.  You do not yet understand and cannot imagine all the results of this evil. But the time will come when you will understand”