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      Before entering on the chain of reasoning which led Aristotle to postulate the existence of a personal First Cause, we must explain the difference between his scientific standpoint, and that which is now accepted by all educated minds. To him the eternity not only of Matter, but also of what he called Form,that is to say, the collection of attributes giving definiteness to natural aggregates, more especially those known as organic specieswas an axiomatic certainty. Every type, capable of self-propagation, that could exist at all, had existed, and would continue to exist for ever. For this, no explanation beyond the generative power of Nature was required. But when he had to account for the machinery by which the perpetual alternation of birth and death below, and the changeless revolutions of the celestial spheres above the moon were preserved, difficulties arose. He had reduced every other change to transport through space; and with regard to this his conceptions were entirely mistaken. He believed that moving matter tended to stop unless it was sustained by some external force; and whatever their advantages over him in other respects, we cannot say that the Atomists were in a position to correct him here: for their349 theory, that every particle of matter gravitated downward through infinite space, was quite incompatible with the latest astronomical discoveries. Aristotle triumphantly showed that the tendency of heavy bodies was not to move indefinitely downwards in parallel lines, but to move in converging lines to the centre of the earth, which he, in common with most Greek astronomers, supposed to be also the centre of the universe; and seeing light bodies move up, he credited them with an equal and opposite tendency to the circumference of the universe, which, like Parmenides and Plato, he believed to be of finite extent. Thus each kind of matter has its appropriate place, motion to which ends in rest, while motion away from it, being constrained, cannot last. Accordingly, the constant periodicity of terrestrial phenomena necessitates as constant a transformation of dry and wet, and of hot and cold bodies into one another. This is explained with perfect accuracy by the diurnal and annual revolutions of the sun. Here, however, we are introduced to a new kind of motion, which, instead of being rectilinear and finite, is circular and eternal. To account for it, Aristotle assumes a fifth element entirely different in character from the four terrestrial elements. Unlike them, it is absolutely simple, and has a correspondingly simple mode of motion, which, as our philosopher erroneously supposes, can be no other than circular rotation.


      The General smiled. "I'll take your parole."


      In his growing excitement Gregg rose and paced the floor of the room, walking away[Pg 184] from the Doctor. He did not hear the slight snigger that broke from the latter; nor had he observed any signs of deeper incredulity in the features of his friend that might have led him to moderate his enthusiasm. He continued, in an exultant voice. "Think of what this means! We know the future! The accidental appearance of the Clockwork man may save the human race generations of striving and effort in a wrong direction. Or rather, it will save us from passing through the intermediate stages consciously, for everything has already happened, and the utmost we can hope is to escape the knowledge of its happening. We shall be able to take a great leap forward into the future. Once we have grasped the principle of the Clockwork man, the course of humanity is clear. It may still be several thousands of years before the final achievement, but we can at least begin."

      They insisted upon my staying near the car, and be a little safer under the protection of the Red Cross. They told me how they had to drag an old woman out of her house, who refused to come with79 them, and in her despair shouted nothing but: "Let me die!let me die!"The Curate's eyebrows shot up in amazement. "Magic?" he queried, with a short laugh. "Oh, we didn't bargain for magic. Only the usual sleight of hand."

      "You ride? Oh, Captain, you are in no condition--"


      Machinery can be divided into four classes, each constituting a division that is very clearly defined by functions performed, as follows:

      Lilian glanced up at them. "If only we could keep there! By their habitations are men known. A house ought to be a sort of resting place. No more. Once you elaborate it, it becomes a prison, with hard labour attached.""Not allowed!"

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      "Damn the difference; I give you one half-minute, Captain Ferry, to say you surrender! If you weren't wounded I wouldn't give you that. Corporal, go get a log out of that fireplace downstairs.""We won't bother about the drawing-room," Hetty said gaily. "That can take care of itself for the present. Two fans and a bulrush as somebody says. And the other rooms, so long as they are light, won't matter. But the dining-room must be quite the thing. Oh, if you could only afford to get the lovely oak we saw at Capper's! We must think of you alone, just at first, Gordon."

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