Cutting tools include nearly all that are employed in finishing; lathes, planing machines, drilling and boring machines, shaping, slotting and milling machines, come within this class. The machines named make up what are called standard tools, such [120]as are essential and are employed in all establishments where general machine manufacture is carried on. Such machines are constructed upon principles substantially the same in all countries, and have settled into a tolerably uniform arrangement of movements and parts.
ONE:And this one he particularly wanted to see, because the name was unknown to him. In all the swindlers in London it was the first time Prout had heard of one called "Frenchy." And the particular member of the gang--absent from London on business--seemed to be the leader of them all. Once Frenchy showed himself, Prout would give the sign, and within an hour the gang would be laid by the heels.
ONE:A drilling machine, adapted to the usual requirements of a machine fitting establishment, consists essentially of a spindle arranged to be driven at various speeds, with a movement for feeding the drills; a firm table set at right angles to the spindle, and arranged with a vertical adjustment to or from the spindle, and a compound adjustment in a horizontal plane. The simplicity of the mechanism required to operate drilling tools is such that it has permitted various modifications, such as column drills, radial drills, suspended drills, horizontal drills, bracket drills, multiple drills, and others.We find the same theory reproduced and enforced with weighty illustrations by the great historian of that age. It is not known whether Thucydides owed any part of his culture to Protagoras, but the introduction to his history breathes the same spirit as the observations which we have just transcribed. He, too, characterises antiquity as a scene of barbarism, isolation, and lawless violence, particularly remarking that piracy was not then counted a dishonourable profession. He points to the tribes outside Greece, together with the most backward among the Greeks themselves, as representing the low condition from which Athens and her sister states had only emerged within a comparatively recent period. And in the funeral oration which he puts into the mouth of Pericles, the legendary glories of Athens are passed over without the slightest allusion,69 while exclusive prominence is given to her proud position as the intellectual centre of Greece. Evidently a radical change had taken place in mens conceptions since Herodotus wrote. They were learning to despise the mythical glories of their ancestors, to exalt the present at the expense of the past, to fix their attention exclusively on immediate human interests, and, possibly, to anticipate the coming of a loftier civilisation than had as yet been seen.
THREE:Such, as it seems to us, is the proper spirit in which we should approach the great thinker whose works are to occupy us in this and the succeeding chapter. No philosopher has ever offered so extended and vulnerable a front to hostile criticism. None has so habitually provoked reprisals by his own incessant and searching attacks on all existing professions, customs, and beliefs. It might even be maintained that none has used the weapons of controversy with more unscrupulous zeal. And it might be added that he who dwells so much on the importance of consistency has occasionally denounced and ridiculed the very principles which he elsewhere upholds as demonstrated truths. It was an easy matter for others to complete the work of destruction which he had begun. His system seems at first sight to be made up of assertions, one more outrageous than another. The ascription of an objective concrete separate reality to verbal abstractions is assuredly the most astounding paradox ever173 maintained even by a metaphysician. Yet this is the central article of Platos creed. That body is essentially different from extension might, one would suppose, have been sufficiently clear to a mathematician who had the advantage of coming after Leucippus and Democritus. Their identity is implicitly affirmed in the Timaeus. That the soul cannot be both created and eternal; that the doctrine of metempsychosis is incompatible with the hereditary transmission of mental qualities; that a future immortality equivalent to, and proved by the same arguments as, our antenatal existence, would be neither a terror to the guilty nor a consolation to the righteous:are propositions implicitly denied by Platos psychology. Passing from theoretical to practical philosophy, it might be observed that respect for human life, respect for individual property, respect for marriage, and respect for truthfulness, are generally numbered among the strongest moral obligations, and those the observance of which most completely distinguishes civilised from savage man; while infanticide, communism, promiscuity, and the occasional employment of deliberate deceit, form part of Platos scheme for the redemption of mankind. We need not do more than allude to those Dialogues where the phases and symptoms of unnameable passion are delineated with matchless eloquence, and apparently with at least as much sympathy as censure. Finally, from the standpoint of modern science, it might be urged that Plato used all his powerful influence to throw back physical speculation into the theological stage; that he deliberately discredited the doctrine of mechanical causation which, for us, is the most important achievement of early Greek thought; that he expatiated on the criminal folly of those who held the heavenly bodies to be, what we now know them to be, masses of dead matter with no special divinity about them; and that he proposed to punish this and other heresies with a severity distinguishable from the fitful fanaticism of his native city only by its more disciplined and rigorous application.
THREE:"Not from those people who advertise, Gordon?"The military organisation of the empire had the further effect of giving a high social status to retired centurionsmen probably recruited from the most barbarous provincial populations, and certainly more remarkable for their huge size than for their mental gifts.316 When one of these heroes heard a philosopher state that nothing can be made out of nothing, he would ask with a horse-laugh whether that was any reason for going without ones dinner.317 On the other hand, when it came to be a question of supernatural agency, a man of this type would astonish the Jews themselves by his credulity. Imbued with the idea of personal authority, he readily fancied that anyone standing high in the favour of God could cure diseases from a distance by simply giving them the word of command to depart.318
Besides its influence on the formation and direction of political eloquence, the doctrine professed by Protagoras had a far-reaching effect on the subsequent development of thought. Just as Cynicism was evolved from the theory of Hippias, so also did the teaching which denied Nature and concentrated all study on subjective phenomena, with a tendency towards individualistic isolation, lead on to the system of Aristippus. The founder of the Cyrenaic school is called a Sophist by Aristotle, nor can the justice of the appellation be doubted. He was, it is true, a friend and companion of Socrates, but intellectually he is more nearly related to Protagoras. Aristippus rejected physical studies, reduced all knowledge to the consciousness of our own sensations, and made immediate gratification the end of life. Protagoras would have objected to the last principle, but it was only an extension of his own views, for all history proves that Hedonism is constantly associated with sensationalism. The theory that knowledge is built up out of feelings has an elective affinity for the theory that action is, or ought to be, determined in the last resort by the most prominent feelings, which are pleasure and pain. Both theories have since been strengthened by the introduction of a new and more ideal element into each. We have come to see that knowledge is constituted not by sensations alone, but by sensations grouped according to certain laws which seem to be inseparable from the existence of any consciousness whatever. And, similarly,100 we have learned to take into account, not merely the momentary enjoyments of an individual, but his whole lifes happiness as well, and not his happiness only, but also that of the whole community to which he belongs. Nevertheless, in both cases it is rightly held that the element of feeling preponderates, and the doctrines of such thinkers as J. S. Mill are legitimately traceable through Epicurus and Aristippus to Protagoras as their first originator.The steam-engine is the most important, and in England and America best known among motive agents. The importance of steam contrasted with other sources of motive-power is due not so much to a diminished cost of power obtained in this way, but for the reason that the amount of power produced can be determined at will, and in most cases without reference to local conditions; the machinery can with fuel and water be transported from place to place, as in the case of locomotives which not only supply power for their own transit, but move besides vast loads of merchandise, or travel.All right, Larry, let that go. But why did Jeff bring us here?
