Worry - a God, invisible but omnipotent. It steals the bloom from the cheek and lightness from the pulse; it takes away the appetite, and turns the hair gray. ↗
At times, we forget the magnitude of the havoc we can wreak by off-loading our minds onto super-intelligent machines, that is, until they run away from us, like mad sorcerers' apprentices, and drag us up to the precipice for a look down into the abyss. ↗
In fiction, too, after the death of Cooper the main tendency for nearly a generation was away from the conquest of new borders to the closer cultivation, east of the Mississippi, of ground already marked. ↗