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.
A scraping of a match, a flood of light again, a queer half-amused smile on the Spaniard's face, as she noted Bruce's expression. Then the front door was opened, and he was bowed out politely. Before he had time to cross the road the light was out again, and the whole house in darkness.Two precepts stand out before all others, which, trivial as they may seem, are uttered from the very soul of Greek62 experience, Be moderate, and, Know thyself. Their joint observance constitutes the characteristic virtue of S?phrosyn, which means all that we understand by temperance, and a great deal more besides; so much, in fact, that very clever Greeks were hard set to define it, and very wise Greeks could pray for it as the fairest gift of the gods.48 Let us suppose that each individual has a sphere of activity marked out for him by his own nature and his special environment; then to discern clearly the limits of that sphere and to keep within them would be S?phrosyn, while the discernment, taken alone, would be wisdom. The same self-restraint operating as a check on interference with other spheres would be justice; while the expansive force by which a man fills up his entire sphere and guards it against aggressions may be called courage. Thus we are enabled to comprehend the many-sided significance of S?phrosyn, to see how it could stand both for a particular virtue and for all virtuousness whatever. We need only glance at Homers poems, and in particular at the Iliada much deeper as well as a more brilliant work than the Odysseyto perceive how very early this demand for moderation combined with self-knowledge had embodied itself in Greek thought. Agamemnon violates the rights of Achilles under the influence of immoderate passion, and through ignorance of how little we can accomplish without the heros assistance. Achilles, again, carries his vindictiveness too far, and suffers in consequence. But his self-knowledge is absolutely perfect; conscious that he is first in the field while others are better in council, he never undertakes a task to which his powers are not fully adequate; nor does he enter on his final work of vengeance without a clear consciousness of the speedy death which its completion will entail on himself. Hector, too, notwithstanding ominous forebodings, knows his duty and does it, but with much less just an estimate of his own powers, leading him to pursue his success too far, and then, when the63 tide has turned, not permitting him to make a timely retreat within the walls of Troy. So with the secondary characters. Patroclus also oversteps the limits of moderation, and pays the penalty with his life. Diomed silently bears the unmerited rebuke of Agamemnon, but afterwards recalls it at a most effective moment, when rising to oppose the craven counsels of the great king. This the Greeks called observing opportunity, and opportunism was with them, as with French politicians, a form of moderation.49 Down at the very bottom of the scale Thersites and Dolon are signal examples of men who do not know their sphere and suffer for their folly. In the Odyssey, Odysseus is a nearly perfect type of wisdom joined with self-control, erring, if we remember rightly, only once, when he insults Polyphemus before the ship is out of danger; while his comrades perish from want of these same gifts.Let us now see how he carries this passionate enthusiasm for knowledge into the humblest researches of zoology:
ONE:We have seen how Carneades, alike in his theory of probability and in his ethical eclecticism, had departed from the extreme sceptical standpoint. His successor, Clitomachus, was content with committing the doctrines of the master to writing. A further step was taken by the next Scholarch, Philo, who is known as the Larissaean, in order to distinguish him from his more celebrated namesake, the Alexandrian Jew. This philosopher asserted that the negations of the New Academy were not to be taken as a profession of absolute scepticism, but merely as a criticism on the untenable pretensions of the Stoa. His own position was that, as a matter of fact, we have some certain knowledge of the external world, but that no logical account can be given of the process by which it is obtainedwe can only say that such an assurance has been naturally stamped on our minds.254 This is the theory of intuitions or innate ideas, still held by many persons; and, as such, it marks a return to pure Platonism, having been evidently suggested by the semi-mythological fancies of the161 Meno and the Phaedrus. With Philo as with those Scotch professors who long afterwards took up substantially the same position, the leading motive was a practical one, the necessity of placing morality on some stronger ground than that of mere probability. Neither he nor his imitators saw that if ethical principles are self-evident, they need no objective support; if they are derivative and contingent, they cannot impart to metaphysics a certainty which they do not independently possess. The return to the old Academic standpoint was completed by a much more vigorous thinker than Philo, his pupil, opponent, and eventual successor, Antiochus. So far from attempting any compromise with the Sceptics, this philosopher openly declared that they had led the school away from its true traditions; and claimed for his own teaching the merit of reproducing the original doctrine of Plato.255 In reality, he was, as Zeller has shown, an eclectic.256 It is by arguments borrowed from Stoicism that he vindicates the certainty of human knowledge. Pushing the practical postulate to its logical conclusion, he maintains, not only that we are in possession of the truth, but alsowhat Philo had deniedthat true beliefs bear on their face the evidence by which they are distinguished from illusions. Admitting that the senses are liable to error, he asserts the possibility of rectifying their mistakes, and of reasoning from a subjective impression to its objective cause. The Sceptical negation of truth he meets with the familiar argument that it is suicidal, for to be convinced that there can be no conviction is a contradiction in terms; while to argue that truth is indistinguishable from falsehood implies an illogical confidence in the validity of logical processes; besides involving the assumption that there are false appearances and that they are known to us as such, which would be impossible unless we were in a position to compare them with the corresponding162 truths.257 For his own part, Antiochus adopted without alteration the empirical theory of Chrysippus, according to which knowledge is elaborated by reflection out of the materials supplied by sense. His physics were also those of Stoicism with a slight Peripatetic admixture, but without any modification of their purely materialistic character. In ethics he remained truer to the Academic tradition, refusing to follow the Stoics in their absolute isolation of virtue from vice, and of happiness from external circumstances, involving as it did the equality of all transgressions and the worthlessness of worldly goods. But the disciples of the Porch had made such large concessions to common sense by their theories of preference and of progress, that even here there was very little left to distinguish his teaching from theirs.258
TWO:This, then, was the revolution effected by Aristotle, that he found Greek thought in the form of a solid, and unrolled into a surface of the utmost possible tenuity, transparency, and extension. In so doing, he completed what Socrates and Plato had begun, he paralleled the course already described by Greek poetry, and he offered the first example of what since then has more than once recurred in the history of philosophy. It was thus that the residual substance of Locke and Berkeley was resolved into phenomenal succession by Hume. It was thus that the unexplained reality of Kant and Fichte was drawn out into a play of logical relations by Hegel. And, if we may venture on a forecast of the future towards which speculation is now advancing, it is thus that the limits imposed on human knowledge by positivists and agnostics in our own day, are yielding to the criticism of those who wish to establish either a perfect identity or a perfect equation between consciousness and being. This is the position represented in France by M. Taine, a thinker offering many points of resemblance to Aristotle, which it would be interesting to work out had we space at our command for the purpose. The forces which are now guiding English philosophy in an analogous direction have hitherto escaped observation on account of their disunion among themselves, and their intermixture with others of a different character. But on the whole we may say that the philosophy of Mill and his school corresponds very nearly in its practical idealism to Platos teaching; that Mr. Herbert Spencer approaches326 Aristotle on the side of theorising systematisation, while sharing to a more limited extent the metaphysical and political realism which accompanied it: that Lewes was carrying the same transformation a step further in his unfinished Problems of Life and Mind; that the philosophy of Mr. Shadworth Hodgson is marked by the same spirit of actuality, though not without a vista of multitudinous possibilities in the background; that the Neo-Hegelian school are trying to do over again for us what their master did in Germany; and that the lamented Professor Clifford had already given promise of one more great attempt to widen the area of our possible experience into co-extension with the whole domain of Nature.209
TWO:With so powerful a protector, Alexander might safely bid his enemies defiance. The governor of Bithynia had to entreat Lucian, whose life had been threatened by the impostor, to keep out of harms way. Should anything happen to you, he said, I could not afford to offend Rutilianus by bringing his father-in-law to justice. Even the best and wisest man then living yielded to the prevalent delusion. Marcus Aurelius, who was at that time fighting with the Marcomanni, was induced to act on an oracle from Abonuteichus, promising that if two lions were thrown into the Danube a great victory would be the result. The animals made their way safely to the opposite bank; but were beaten to death with clubs by the barbarians, who mistook them for some outlandish kind of wolf or dog; and the imperial army was shortly afterwards defeated with a loss of 20,000 men.346 Alexander helped himself out of the difficulty with the stale excuse that he had only foretold a victory, without saying which side should win. He was not more successful in determining the duration of his own life, which came to an end before he had completed seventy years, instead of lasting, as he had prophesied, for a hundred and fifty. This miscalculation, however, seems not to have impaired his reputation, for even after his death it was believed that a statue of him in the market-place of Parium in Mysia had the power of giving oracles.347
TWO:"Some days ago you bought a picture," Herr Kronin proceeded. "It was a small picture of the early Dutch School, signed J. Halbin. A woman nursing a sick child, and the father looking on. Not a valuable picture."
TWO:"It's ruin," he said simply, "nothing else. A little time ago it looked to me as if all my ambitions were to be realised. And then this crushing misfortune comes upon me. My practice falls away, and I could not get my money in. Of course I can't dun patients like mine. It didn't matter till lately, because the guineas I got from consultations were keeping me going. But these morning callers call no more. I was pressed here and there, and I borrowed money."The inquest was sensational from the very start. After the dead man's landlady of the house by the docks and her landlord's agent proved the handwriting of the deceased, Sergeant Prout told the story of the missing banknotes. A good few of the packed audience knew Bruce by sight, and as the evidence proceeded he found the scrutiny of so many eyes quite trying.
TWO:It will be found that information of improvements and mechanical progress that a learner may gather from serial publications can always be exchanged for special knowledge in his intercourse with skilled workmen, who have not the opportunity or means of reading for themselves; and what an apprentice may read and learn in an hour can often be "exchanged" for experimental knowledge that has cost years to acquire."Nobody but a servant, and a pretty one," the other said.
It was at this juncture that the voluntary withdrawal of an older fellow-pupil placed Arcesilaus at the head of the Academy. The date of his accession is not given, but we are told that he died 241 or 240 B.C. in the seventy-fifth year of his age. He must, therefore, have flourished a generation later than Zeno and Epicurus. Accomplished, witty, and generous, his life is described by some as considerably less austere than that of the excellent nonentities whom he succeeded. Yet its general goodness was testified to by no less an authority than his contemporary, the noble Stoic, Cleanthes. Do not blame Arcesilaus, exclaimed the latter146 to an unfriendly critic; if he denies duty in his words, he affirms it in his deeds. You dont flatter me, observed Arcesilaus. It is flattering you, rejoined Cleanthes, to say that your actions belie your words.230 It might be inferred from this anecdote that the scepticism of the new teacher, like that of Carneades after him, was occasionally exercised on moral distinctions, which, as then defined and deduced, were assuredly open to very serious criticism. Even so, in following the conventional standard of the age, he would have been acting in perfect consistency with the principles of his school. But, as a matter of fact, his attacks seem to have been exclusively aimed at the Stoic criterion of certainty. We have touched on this difficult subject in a former chapter, but the present seems a more favourable opportunity for setting it forth in proper detail.Our critics are not content with bringing up Aristotle as an authority on the metaphysical controversies of the present day, and reading into him theories of which he never dreamed:279 they proceed to credit him with modern opinions which he would have emphatically repudiated, and modern methods which directly reverse his scientific teaching. Thus Sir A. Grant takes advantage of an ambiguity in the word Matter, as used respectively by Aristotle and by contemporary writers, to claim his support for the peculiar theories of Prof. Ferrier; although the Stagirite has recorded his belief in the reality and independence of material objects (if not of what he called matter) with a positiveness which one would have thought left no possibility of misunderstanding him.168 And Mr. Wallace says that Aristotle recognises the genesis of things by evolution and development; a statement which, standing where it does, and with no more qualifications than are added to it, would make any reader not versed in the subject think of the Stagirite rather as a forerunner of Mr. Darwin and Mr. Herbert Spencer, than as the intellectual ancestor of their opponents; while, on a subsequent occasion, he quotes a passage about the variations of plants under domestication, from a work considered to be un-Aristotelian by the best critics, apparently with no other object than that of finding a piece of Darwinism in his author.169Forging as a process in machine-making includes the forming and shaping of the malleable parts of machinery, welding or joining pieces together, the preparation of implements for forging and finishing, tempering of steel tools, and usually case-hardening.We are now in a position to understand how far Epicurus was justified in regarding the expectation of immortality as a source of dread rather than of consolation. In this respect also, the survival of the fittest has determined that human92 nature shall not look forward with satisfaction to the termination of its earthly existence. Were any race of men once persuaded that death is the passage to a happier world, it would speedily be replaced by competitors holding a belief better adapted to the conditions of terrestrial duration. Hence, practically speaking, the effect of religious dogmas has been to make death rather more dreaded than it would have been without their aid; and, as already observed, their natural tendency has been powerfully stimulated by the cupidity of their professional expositors. The hope of heaven, to exist at all, must be checked by a considerably stronger apprehension of hell. There is a saying in America that the immortality of the soul is too good to be true. We suspect that the immortality in which most religious Americans still believe hardly deserves such a compliment; but it accurately expresses the incredulity with which a genuine message of salvation would be received by most men; and this explains why Universalism, with the few who have accepted it, is but the transition stage to a total rejection of any life beyond the grave. No doubt, in the first flush of fanaticism, the assurance of an easy admission to paradise may do much to win acceptance for the religion which offers it; but when such a religion ceases to make new conquests, its followers must either modify their convictions, or die out under the competition of others by whom mortal life is not held so cheap.
荣誉榜
THREE:"The Acting Burgomaster,Text-books, such as relate to construction, consist generally of examples, drawings, and explanations of machines, gearing, tools, and so on; such examples are of use to a learner, no doubt, but in most cases he can examine the machines themselves, and on entering a shop is brought at once in contact not only with the machines but also with their operation. Examples and drawings relate to how machines are constructed, but when a learner comes to the actual operation of machines, a new and more interesting problem is reached in the reasons why they are so constructed.
THREE:Workshop processes which are capable of being systematised are the most easy to learn. When a process is reduced to a system it is no longer a subject of special knowledge, but comes within general rules and principles, which enable a learner to use his reasoning powers to a greater extent in mastering it.
