In life, unlike chess, the game continues after checkmate. - Isaac Asimov

"The girl who wore only a pair of shorts said, "It was the university that called down the Darkness on us." "And the Stars," said the man who wore just a shirt. "They brought the Stars." "And this one might bring them back," said the woman who had spoken before. "Get him out of here! Get him out of here!" Sheerin stared incredulously. He told himself that he should have been able to predict this. It was an all too likely development: pathological suspicion of all scientists, all educated people, an unreasoning phobia that must be raging now like a virus among the survivors of the night of terror."

On Earth, we have a continuous influx of young people who are willing to change because they haven't had time to grow hard set in their ways. I suppose there's some optimum. A life long enough for real accomplishment and short enough to make way for youth at a rate that's not too slow.

"Do you expect him to say to you, 'So-and-so is a robot because he hardly ever eats with people, and I have never seen him fall asleep in the middle of a case; and once when I peeped into his window in the middle of the night, there he was, sitting up with a book; and I looked in his frigidaire and there was no food in it.' "If he told you that, you would send for a strait-jacket. But if he tells you, 'He never sleeps; he never eats,' then the shock of the statement blinds you to the fact that such statements are impossible to prove. You play into his hands by contributing to the to-do."