The true delight is in the finding out rather than in the knowing. - Isaac Asimov

You wash your hands, don't you?"

Bayley's eyes dropped to his hands. They were as clean as need be. "Yes," he said.

"All right. I suppose it's a measure of instability to feel such revulsion at dirty hands as to be unable to clean an oily mechanism by hand even in a emergency. Still, in the ordinary course of living, the revulsion keeps you clean, which is good.

[B]y 1204, the only place where the entire body of Greek learning existed, still intact, was Constantinople. As a result of the crusaders' conquest, however, Constantinople was ruthlessly pillaged and destroyed and almost all the great treasures of ancient Greek learning were lost forever. It is because of that sack, for instance, that we have only seven plays left out of the better than one hundred written by Sophocles. The tragedy of 1204 can never be undone and for all of time, only bits and pieces of the marvelous Greek world can be known to us.

La humanidad ha perdido todo control sobre su futuro
-No lo ha tenido jamás, en realidad.Estuvo siempre a merced de unas fuerzas económicas y sociológicas que no entendía, de los caprichos del clima y de los azares de la guerra.