[14] "_Also sprach Zarathustra_," III. V ETERNAL RECURRENCE In the superman Nietzsche showed the world a conceivable and possible goal for all human effort. But there still remained a problem and it was this: When the superman at last appears on earth, what then? Will there be another super-superman to follow and a super-supersuperman after that? In the end, will man become the equal of the creator of the universe, whoever or whatever He may be? Or will a period of decline come after, with a return down the long line, through the superman to man again, and then on to the anthropoid ape, to the lower mammals, to the asexual cell, and, finally, to mere inert matter, gas, ether and empty space? Nietzsche answered these questions by offering the theory that the universe moves in regular cycles and that all which is now happening on earth, and in all the stars, to the uttermost, will be repeated, again and again, throughout eternity. In other words, he dreamed of a cosmic year, corresponding, in some fashion, to the terrestrial year. Man, who has sprung from the elements, will rise into superman, and perhaps infinitely beyond, and then, in the end, by catastrophe or slow decline, he will be resolved into the primary elements again, and the whole process will begin anew. This notion, it must be admitted, was not original with Nietzsche and it would have been better for his philosophy and for his repute as an intelligent thinker had he never sought to elucidate it. In his early essay on history he first mentioned it and there he credited it to its probable inventors--the Pythagoreans.[1] It was their belief that, whenever the heavenly bodies all returned to certain fixed relative positions, the whole history of the universe began anew. The idea seemed to fascinate Nietzsche, in whom, despite his worship of the actual, there was an ever-evident strain of mysticism, and he referred to it often in his later books. The pure horror of it--of the notion that all the world's suffering would have to be repeated again and again, that men would have to die over and over again for all infinity, that there was no stopping place or final goal--the horror of all this appealed powerfully to his imagination. Frau Andreas-Salomé tells us that he "spoke of it only in a low voice and with every sign of the profoundest emotion" and there is reason to believe that, at one time, he thought there might be some confirmation of it in the atomic theory, and that his desire to go to Vienna to study the natural sciences was prompted by a wish to investigate this notion. Finally he became convinced that there was no ground for such a belief in any of the known facts of science, and after that, we are told, his shuddering horror left him.