CHAPTER V. I am disposed to agree with what has been surmised by others, that the opportunity which my official position gave me of learning by personal observation the necessary conditions of the practical conduct of public affairs, has been of considerable value to me as a theoretical reformer of the opinions and institutions of my time. Not, indeed, that public business transacted on paper, to take effect on the other side of the globe, was of itself calculated to give much practical knowledge of life. But the occupation accustomed me to see and hear the difficulties of every course, and the means of obviating them, stated and discussed deliberately with a view to execution; it gave me opportunities of perceiving when public measures, and other political facts, did not produce the effects which had been expected of them, and from what causes; above all, it was valuable to me by making me, in this portion of my activity, merely one wheel in a machine, the whole of which had to work together. As a speculative writer, I should have had no one to consult but myself, and should have encountered in my speculations none of the obstacles which would have started up whenever they came to be applied to practice. But as a Secretary conducting political correspondence, I could not issue an order or express an opinion, without satisfying various persons very unlike myself, that the thing was fit to be done. I was thus in a good position for finding out by practice the mode of putting a thought which gives it easiest admittance into minds not prepared for it by habit; while I became practically conversant with the difficulties of moving bodies of men, the necessities of compromise, the art of sacrificing the non-essential to preserve the essential. I learnt how to obtain the best I could, when I could not obtain everything; instead of being indignant or dispirited because I could not have entirely my own way, to be pleased and encouraged when I could have the smallest part of it; and when even that could not be, to bear with complete equanimity the being overruled altogether. I have found, through life, these acquisitions to be of the greatest possible importance for personal happiness, and they are also a very necessary condition for enabling any one, either as theorist or as practical man, to effect the greatest amount of good compatible with his opportunities. Presently a man passed before her, walking with an unequal pace鈥攏ow quick, now slow, now stopping outright. He had his hands clasped at the back of his neck; his head was bent down, and he was talking aloud to himself. THE PRETENDER; The conflicts which I had so often had to sustain in defending the theory of government laid down in Bentham's and my father's writings, and the acquaintance I had obtained with other schools of political thinking, made me aware of many things which that doctrine, professing to be a theory of government in general, ought to have made room for, and did not. But these things, as yet, remained with me rather as corrections to be made in applying the theory to practice, than as defects in the theory. I felt that politics could not be a science of specific experience; and that the accusations against the Benthamic theory of being a theory, of proceeding 脿 priori by way of general reasoning, instead of Baconian experiment, showed complete ignorance of Bacon's principles, and of the necessary conditions of experimental investigation. At this juncture appeared in the Edinburgh Review, Macaulay's famous attack on my father's Essay on Government. This gave me much to think about. I saw that Macaulay's conception of the logic of politics was erroneous; that he stood up for the empirical mode of treating political phenomena, against the philosophical; that even in physical science his notion of philosophizing might have recognized Kepler, but would have excluded Newton and Laplace. But I could not help feeling, that though the tone was unbecoming (an error for which the writer, at a later period, made the most ample and honourable amends), there was truth in several of his strictures on my father's treatment of the subject; that my father's premises were really too narrow, and included but a small number of the general truths, on which, in politics, the important consequences depend. Identity of interest between the governing body and the community at large, is not, in any practical sense which can be attached to it, the only thing on which good government depends; neither can this identity of interest be secured by the mere conditions of election. I was not at all satisfied with the mode in which my father met the criticisms of Macaulay. He did not, as I thought he ought to have done, justify himself by saying, "I was not writing a scientific treatise on politics, I was writing an argument for parliamentary reform." He treated Macaulay's argument as simply irrational; an attack upon the reasoning faculty; an example of the saying of Hobbes, that when reason is against a man, a man will be against reason. This made me think that there was really something more fundamentally erroneous in my father's conception of philosophical method, as applicable to politics, than I had hitherto supposed there was. But I did not at first see clearly what the error might be. At last it flashed upon me all at once in the course of other studies. In the early part of 1830 I had begun to put on paper the ideas on Logic (chiefly on the distinctions among Terms, and the import of Propositions) which had been suggested and in part worked out in the morning conversations already spoken of. Having secured these thoughts from being lost, I pushed on into the other parts of the subject, to try whether I could do anything further towards clearing up the theory of Logic generally. I grappled at once with the problem of Induction, postponing that of Reasoning, on the ground that it is necessary to obtain premises before we can reason from them. Now, Induction is mainly a process for finding the causes of effects: and in attempting to fathom the mode of tracing causes and effects in physical science, I soon saw that in the more perfect of the sciences, we ascend, by generalization from particulars, to the tendencies of causes considered singly, and then reason downward from those separate tendencies, to the effect of the same causes when combined. I then asked myself, what is the ultimate analysis of this deductive process; the common theory of the syllogism evidently throwing no light upon it. My practice (learnt from Hobbes and my father) being to study abstract principles by means of the best concrete instances I could find, the Composition of Forces, in dynamics, occurred to me as the most complete example of the logical process I was investigating. On examining, accordingly, what the mind does when it applies the principle of the Composition of Forces, I found that it performs a simple act of addition. It adds the separate effect of the one force to the separate effect of the other, and puts down the sum of these separate effects as the joint effect. But is this a legitimate process? In dynamics, and in all the mathematical branches of physics, it is; but in some other cases, as in chemistry, it is not; and I then recollected that something not unlike this was pointed out as one of the distinctions between chemical and mechanical phenomena, in the introduction to that favorite of my boyhood, Thomson's System of Chemistry. This distinction at once made my mind clear as to what was perplexing me in respect to the philosophy of politics. I now saw, that a science is either deductive or experimental, according as, in the province it deals with, the effects of causes when conjoined, are or are not the sums of the effects which the same causes produce when separate. It followed that politics must be a deductive science. It thus appeared, that both Macaulay and my father were wrong; the one in assimilating the method of philosophising in politics to the purely experimental method of chemistry; while the other, though right in adopting a deductive method, had made a wrong selection of one, having taken as the type of deduction, not the appropriate process, that of the deductive branches of natural philosophy, but the inappropriate one of pure geometry, which, not being a science of causation at all, does not require or admit of any summing-up of effects. A foundation was thus laid in my thoughts for the principal chapters of what I afterwards published on the Logic of the Moral Sciences; and my new position in respect to my old political creed, now became perfectly definite. No, thank you. I don't want to ask Miss Minnie about it. 天堂2019线线在看 天堂2014线播放_2019老司机福利在线网址_老司机福利视频2017不寂寞 An important result of this experimental work was that it in many cases enabled designers to produce aeroplane parts from less costly material than had previously been considered necessary, without impairing the strength. It may be mentioned that it was found undesirable to use welded joints on aircraft in any part where the material is subject to a tensile or bending load, owing to the danger resulting from bad workmanship causing the material to become brittle鈥攁n effect which cannot be discovered except by cutting through the weld, which, of course, involves a test to destruction. Written, as it has been, in August, 1920, it is impossible in this chapter to give any conception of how the developments of War will be applied to commercial aeroplanes, as few truly commercial machines have yet been designed, and even those still show distinct traces of the survival of war mentality. When, however, the inevitable recasting of ideas arrives, it will become evident, whatever the apparent modification in the relative importance of different aspects of design, that enormous advances were made under the impetus of War which have left an indelible mark on progress. Weasel. [Shaking his head.] There鈥檚 some others I know seem running the same road. Minnie looked pained. They were trenching here on ground on which she had no intention of venturing farther. It formed no part of her plan to be drawn into a discussion respecting the defects and shortcomings of Algernon's wife. She was silent. Sick like what? Algernon's state of mind during his return journey to Whitford was very much pleasanter than it had been on his way up to town. To be sure, he had committed himself distinctly to a very grave statement. That was always disagreeable. But then he had made an immense impression on Lord Seely by his statement. He had crushed and overwhelmed that "pompous little ass." He had humiliated that "absurd little upstart." And鈥攂est of all; for these others were mere dilettante pleasures, which no man of intelligence would indulge in at the cost of his solid interests鈥攈e had terrified him so completely with the spectre of a public scandal and disgrace, that my lord was ready to do anything to help him and Castalia out of England. Of that there could be no doubt.