THREE:It may also be mentioned that lathes constructed with angular guides, have usually such ways for the moving heads as well as for the carriages; this gives the advantage of firmly binding the [125] two sides of the frame together in fastening the moving head, which in effect becomes a strong girt across the frame; the carriages also have an equal and independent hold on both sides of a shear. In following this matter thus far, it may be seen how many conditions may have to be considered in reasoning about so apparently simple a matter as the form of ways for lathe carriages; we might even go on to many more points that have not been mentioned; but what has been explained will serve to show that the matter is not one of opinion alone, and that without practical advantages, machine tool-makers will not follow the most expensive of these two modes of mounting lathe carriages.It has been already mentioned how large a place was given to erotic questions by the literary Platonists of the second century. Even in the school of Plotinus, Platonic love continued to be discussed, sometimes with a freedom which pained and disgusted the master beyond measure.431 His first essay was apparently suggested by a question put to him in the course of some such debate.432 The subject is beauty. In his treatment of it, we find our philosopher at once rising superior to the indecorous frivolities of his predecessors. Physical beauty he declares to be the ideal element in objects, that which they have received from the creative soul, and which the perceptive soul recognises as akin to her own essence. Love is nothing but the excitement and joy occasioned by this discovery. But to understand the truer and higher forms of beauty, we must turn away288 from sensible perceptions, and study it as manifested in wise institutions, virtuous habits, and scientific theories. The passionate enthusiasm excited by the contemplation of such qualities as magnanimity, or justice, or wisdom, or valour can only be explained by assuming that they reveal our inmost nature, showing us what we were destined for, what we originally were, and what we have ceased to be. For we need only enumerate the vices which make a soul hideousinjustice, sensuality, cowardice, and the liketo perceive that they are foreign to her real nature, and are imposed on her by contamination with the principle of all evil, which is matter. To be brave means not to dread death, because death is the separation of the soul from the body. Magnanimity means the neglect of earthly interests. Wisdom means the elevation of our thoughts to a higher world. The soul that virtue has thus released becomes pure reason, and reason is just what constitutes her intrinsic beauty. It is also what alone really exists; without it all the rest of Nature is nothing. Thus foul is opposed to fair, as evil to good and false to true. Once more, as the soul is beautiful by participation in reason, so reason in its turn depends on a still higher principle, the absolute good to which all things aspire, and from which they are derivedthe one source of life, of reason, and of existence. Behind all other loves is the longing for this ultimate good; and in proportion to its superiority over their objects is the intensity of the passion which it inspires, the happiness which its attainment and fruition must bestow. He who would behold this supreme beauty must not seek for it in the fair forms of the external world, for these are but the images and shadows of its glory. It can only be seen with the inward eye, only found in the recesses of our own soul. To comprehend the good we must be good ourselves; or, what is the same thing, we must be ourselves and nothing else. In this process of abstraction, we first arrive at pure reason, and then we say that the ideas289 of reason are what constitutes beauty. But beyond reason is that highest good of which beauty is merely the outward vesture, the source and principle from which beauty springs.
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THREE:The qualities which enabled Epicurus to compete successfully with much greater thinkers than himself as the founder of a lasting sect, were practical rather than theoretical. Others before him had taught that happiness was the end of life; none, like him, had cultivated the art of happiness, and pointed out the fittest methods for attaining it. The idea of such an art was a real and important addition to the resources of civilisation. No mistake is greater than to suppose that pleasure is lost by being made an object of pursuit. To single out the most agreeable course among many alternatives, and, when once found, steadily to pursue it, is an aptitude like any other, and is capable of being brought to a high degree of perfection by assiduous attention and self-discipline.211 No doubt the capacity for enjoyment117 is impaired by excessive self-consciousness, but the same is true of every other accomplishment during the earlier stages of its acquisition. It is only the beginner who is troubled by taking too much thought about his own proficiency; when practice has become a second nature, the professor of hedonism reaps his harvest of delight without wasting a thought on his own efforts, or allowing the phantom of pleasure in the abstract to allure him away from its particular and present realisation. And, granting that happiness as such can be made an object of cultivation, Epicurus was perfectly right in teaching that the removal of pain is its most essential condition, faulty as was (from a speculative point of view) his confusion of the condition with the thing itself. If the professed pleasure-seekers of modern society often fail in the business of their lives, it is from neglecting this salutary principle, especially where it takes the form of attention to the requirements of health. In assigning a high importance to friendship, he was equally well inspired. Congenial society is not only the most satisfying of enjoyments in itself, but also that which can be most easily combined with every other enjoyment. It is also true, although a truth felt rather than perceived by our philosopher, that speculative agreement, especially when speculation takes the form of dissent from received opinions, greatly increases the affection of friends for one another. And as theology is the subject on which unforced agreement seems most difficult, to eliminate its influence altogether was a valuable though purely negative contribution to unanimity of thought and feeling in the hedonistic sect.The traction of belts upon pulleys, like that of locomotive wheels upon railways, being incapable of demonstration except by actual experience, for a long time hindered the introduction of belts as a means of transmitting motion and power except in cases when gearing or shafts could not be employed. Motion is named separately, because with many kinds of machinery that are driven at high speedsuch as wood machinesthe transmission of rapid movement must be considered as well as power, and in ordinary practice it is only by means of belts that such high speeds may be communicated from one shaft to another.
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THREE:"It matters a great deal," Lawrence replied. "You want your jewels back----"IV.
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