A yellow leaf fluttered down from overhead and settled in his lap, a clear, almost transparent yellow against the brownness of the robe. He moved to … - Clifford D. Simak

My reluctance to use alien invasion is due to the feeling that we are not likely to be invaded and taken over. It would seem to me that by the time a race has achieved deep space capability it would have matured to a point where it would have no thought of dominating another intelligent species. Further than this, there should be no economic necessity of its doing so. By the time it was able to go into deep space, it must have arrived at an energy source which would not be based on planetary natural resources.

For even if the life of my own Earth and this other Earth on which I stood had started out identically (and they might well have started out identically) there still would be, along the way, millions of little deviations, no one of which, perhaps, by itself, would be significant, but the cumulative effects of all these deviations eventually would result in a life and culture that would bear no resemblance to any other Earth.

And how much did he and the others lost when they had turned their backs on magic? Belief, of course, and there might be some value in belief, although there was, as well, delusion and did a man want to pay for the value of belief in the coinage of delusion?