So, in times past, had arisen—and might again arise—a scientific priesthood whose initiates, to the vulgar, were magicians; a caste that guarded science as a mystery and confined the knowledge which is power of destruction to those who had been trained not to use it. The old lost learning of dead and gone kingdoms was a science shielded by its devotees from defilement by human emotion; a pure, cold knowledge, set apart and worshipped for itself.... And somewhere in the vastness of the great round world the beginnings of a priesthood, a scientific caste, might be building unconsciously on the lines of ancient wisdom, and laying the foundations of yet another Egypt or Chaldæa. A State whose growth would be rooted in the mystery of knowledge and fear of human passion; whose culture and civilization would be moulded by a living and terrible tradition of catastrophe through science uncontrolled.... And, so long as the tradition was living and terrible, the initiate would stand guard before his mysteries, that the world might be saved from itself; only when humanity had forgotten its downfall and ruin had ceased to be even a legend, would the barrier between science and emotion be withdrawn and knowledge be claimed as the right of the uncontrolled, the multitude. * * * * * Till his brain began to fail him he watched, in dumb interest, the life and development of the tribe; learning from it more than he had ever known in the world of his youth of the eternal foundations on which life in community is built. The unending struggle between the desire for freedom, which makes of man a rebel, and the need for security, which makes of him a citizen, was played before his understanding eyes; he watched parties, castes and priesthoods in the making and, before he died, could forecast the beginning of an aristocracy, a slave class and a tribal hereditary monarchy. In all things man untraditioned held blindly to the ways he had forgotten; instinctively, not knowing whither they led, he trod the paths that his fathers had trodden before him.