Should the soul vanish from the earth, the motors would stop, because that is the power which keeps them going-not the oil under the floor under her feet, the oil that would then become primeval ooze again-not the steel cylinders that would become stains of rust on the walls of the caves of shivering savages-the power of a living mind —the power of thought and choice and purpose.
They looked as if they had come to this room at the price of countless evasions, to let it help them pretend that theirs was still a civilized existence-but an act oŁ primeval violence had blasted the nature of their world into the open and they were no longer able not to see.
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), he made the friendly Indian runner his prisoner, and he moved farther north until his forces became hopelessly lost in the forest primeval, where they sat out the wars in considerable bewilderment.
Harper Lee -- Go Set a Watchman
Maybe it’s something that’s evolved from our primeval days when your survival odds were better if you picked up on your buddy’s fear without wasting time to discuss it.