ONE:Considered mechanically as a means of handling material, the human hands are capable of exerting force in any direction, vertically, horizontally, or at any angle, moving at various rates of speed, as the conditions may require, and with varying force within the limits of human strength. These functions enable us to pick up or lay down a weight slowly and carefully, to transport it at a rapid rate to save time, to move it in any direction, and without the least waste of power, except in the case of carrying small loads, when the whole body has to be moved, as in ascending or descending stairs. The power travelling cranes, that are usually employed in machine-fitting establishments, are perhaps the nearest approach that has been made to the human frame in the way of handling mechanism; they, however, lack that very important feature of a movement, the speed of which is graduated at will. It is evident that in machinery of any kind for handling and lifting that moves at a uniform rate of speed, and this rate of speed adapted, as it must be, to the conditions of starting or depositing a load, much time must be lost in the transit, especially when the load is moved for a considerable distance. This uniform speed is perhaps the greatest defect in the lifting machinery in common use, at least in such as is driven by power.After considering by what agencies the seeds of religious belief were carried from place to place, we have to examine, what was even more important, the quality of the soil on which they fell. And here, to continue the metaphor, we shall find that the Roman plough had not only broken through the crust of particularist prejudice, but had turned up new social strata eminently fitted to receive and nourish the germs scattered over their surface by every breeze and every bird of passage, or planted and watered by a spiritual sower��s hand. Along with the positive check of an established worship, the negative check of dissolving criticism had, to a great extent, disappeared with the destruction of the r��gime which had been most favourable to its exercise during the early stages of progress. The old city aristocracies were not merely opposed on patriotic grounds to free-trade in religion, but, as the most educated and independent class in the community, they were the first to shake off supernatural beliefs of every kind. We have grown so accustomed to seeing those beliefs upheld by the partisans of political privilege and attacked in the name of democratic principles, that we are apt to forget how very modern is the association of free-thought with the supremacy of numbers. It only dates from the French Revolution, and even now it is far from obtaining everywhere. Athens was the most perfectly organised democracy of antiquity, and in the course of this work we have repeatedly had occasion to observe how strong was the spirit of religious bigotry among the Athenian people. If we want rationalistic opinions we must go to the great nobles and their friends, to a Pericles, a Critias, or a Protagoras. There must also have been perfect intellectual liberty among205 the Roman nobles who took up Hellenic culture with such eagerness towards the middle of the second century B.C., and among those who, at a later period, listened with equanimity or approval to Caesar��s profession of Epicureanism in a crowded senatorial debate. It was as much in order that the De Rerum Natura should have been written by a member of this class as that the Aeneid should proceed from the pen of a modest provincial farmer. In positive knowledge, Virgil greatly excelled Lucretius, but his beliefs were inevitably determined by the traditions of his ignorant neighbours. When civil war, proscription, delation, and, perhaps more than any other cause, their own delirious extravagance, had wrought the ruin of the Roman aristocracy, their places were taken by respectable provincials who brought with them the convictions without the genius of the Mantuan poet; and thenceforward the tide of religious reaction never ceased rising until the Crusades, which were its supreme expression, unexpectedly brought about a first revival of Hellenic culture. On that occasion, also, the first symptoms of revolt manifested themselves among the nobles; taking the form of Gnosticism in the brilliant courts of Languedoc, and, at a later period, of Epicureanism in the Ghibelline circles of Florentine society; while, conversely, when the Ciompi or poorer artisans of Florence rose in revolt against the rich traders, one of the first demands made by the successful insurgents was, that a preaching friar should be sent to give them religious instruction. At a still later period, the same opposition of intellectual interests continues to be defined by the same social divisions. Two distinct currents of thought co-operated to bring about the Protestant Reformation. One, which was religious and reactionary, proceeded from the people. The other, which was secularising, scholarly, and scientific, represented the tendencies of the upper classes and of those who looked to them for encouragement and support. Throughout the sixteenth and seventeenth centuries, many noble names are to be found206 among the champions of reason; and while speculative liberty is associated with the ascendency of the aristocratic party, superstition and intolerance are associated with the triumph of the people, whether under the form of a democracy or of a levelling despotism. So, also, the great emancipating movement of the eighteenth century was fostered by the descendants of the Crusaders, and, until after the Revolution, met with no response among the bourgeoisie or the people; indeed the reaction in favour of supernaturalism was begun by a child of the people, Rousseau. All this, as we have already observed, has been reversed in more recent times; but the facts quoted are enough to prove how natural it was that in the ancient world decay of class privileges should be equivalent to a strengthening of the influences which made for supernaturalism and against enlightened criticism.

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