" We are fighting that force in the universe that nudges everything toward chaos. I mean that we are at war with time; we are enemies of entropy; we seek to snatch back those things that have been taken from us by the years—the childhood toys, the friends and relatives who are gone, the events of the past—everything, we struggle to recapture everything, back to the beginning of creation, out of this need not to let anything slip away. "

― Robert Silverberg , Across a Billion Years