The motives that explained human murder bunched, historically, into three groups: material gain; personal grudge and sociopathy. - Adam Roberts

Are we in a dream?" Lebret asked. "Might we actually be dead and in some afterlife?"
"How could we test either supposition?" the scientist asked, with characteristic practical-mindedness. "What conceivable experiment could we design to falsify such a claim?

By all means let us consult your needs! So long as they overlap precisely with my needs, I’m sure we can accommodate them.

But once we are free...once we have evolved beyond the old medieval power structures and the medieval internecine violence they create, then we’ll be able to use the technology responsibly. Everything depends on that.