But man had changed. He had lost the old knowledge and old skills. His mind had become a flaccid thing. He lived from one day to the next without any shining goal. But he still kept the old vices--the vices that had become virtues from his own viewpoint and raised him by his own bootstraps. He kept the unwavering belief that his was the only kind, the only life that mattered--the smug egoism that made him the self-appointed lord of all creation.