Él podía ser un extranjero, pero un hombre siempre es un hombre. - Isaac Asimov

PSYCHOHISTORY … Gaal Dornick, using non-mathematical concepts, has defined psychohistory to be that branch of mathematics which deals with the reactions of human conglomerates to fixed social and economic stimuli … … Implicit in all these definitions is the assumption that the human conglomerate being dealt with is sufficiently large for valid statistical treatment.

It’s a dull world, full of farms and with lots of cattle, both four-legged and two-legged.

The senior lieutenant of the Dark Nebula stared in horror at the visiplate. "Great Galloping Galaxies!" It should have been a howl, but it was a whisper instead. "What's that?" It was a ship, but a whale to the Dark Nebula's minnow; and on its side was the Spaceship-and-Sun of the Empire. Every alarm on the ship yammered hysterically. The orders went out, and the Dark Nebula prepared to run if it could, and fight if it must, — while down in the hyperwave room, a message stormed its way through hyperspace to the Foundation. Over and over again! Partly a plea for help, but mainly a warning of danger.