《【Oks】彩票双色球网上在哪购买》Henceforth, whatever our philosopher says about Matter will apply to extension and to extension alone. It cannot be apprehended by sight, nor by hearing, nor by smell, nor by taste, for it is neither colour, nor sound, nor odour, nor juice. Neither can it be touched, for it is not a body, but it becomes corporeal on being blended with sensible qualities. And, in a later essay, he describes it as receiving all things and letting them depart again without retaining the slightest trace of their presence.483 Why then, it may be asked, if Plotinus meant extension, could he not say so at once, and save us all this trouble in hunting out his meaning? There were very good reasons why he should not. In the first place, he wished to express himself, so far as possible, in Aristotelian phraseology, and this was incompatible with the reduction of Matter to extension. In the next place, the idea of an infinite void had been already appropriated by the Epicureans, to whose system he was bitterly opposed. And, finally, the extension of ordinary327 experience had not the absolute generality which was needed in order to bring Matter into relation with that ultimate abstraction whence, like everything else, it has now to be derived.
So far, the sceptical theory had been put forward after a somewhat fragmentary fashion, and in strict dependence on the previous development of dogmatic philosophy. With the137 Humanists it had taken the form of an attack on physical science; with the Megarians, of a criticism on the Socratic dialectic; with both, it had been pushed to the length of an absolute negation, logically not more defensible than the affirmations to which it was opposed. What remained was that, after being consistently formulated, its results should be exhibited in their systematic bearing on the practical interests of mankind. The twofold task was accomplished by Pyrrho, whose name has accordingly continued to be associated, even in modern times, with the profession of universal doubt. This remarkable man was a native of Elis, where a branch of the Megarian school had at one time established itself; and it seems likely that the determining impulse of his life was, directly or indirectly, derived from Stilpo’s teaching. A contemporary of Alexander the Great, he accompanied the Macedonian army on its march to India, subsequently returning to his native city, where he died at an advanced age, about 275 B.C. The absurd stories about his indifference to material obstacles when out walking have been already mentioned in a former chapter, and are sufficiently refuted by the circumstances just related. The citizens of Elis are said to have shown their respect for the philosopher by exempting him from taxation, appointing him their chief priest—no inappropriate office for a sceptic of the true type—and honouring his memory with a statue, which was still pointed out to sightseers in the time of Pausanias.226
The Epicurean cosmology need not delay us long. It is completely independent of the atomic theory, which had only been introduced to explain the indestructibility of matter, and, later on, the mechanism of sensation. In describing how the world was first formed, Epicurus falls back on the old Ionian meteorology. He assumes the existence of matter in different states of diffusion, and segregates fluid from solid, light from heavy, hot from cold, by the familiar device of a rapid vortical movement.168 For the rest, as we have already noticed, Epicurus gives an impartial welcome to the most conflicting theories of his predecessors, provided only that they dispense with the aid of supernatural intervention; as will87 be seen by the following summary, which we quote from Zeller:—
Notwithstanding the radical error of Aristotle’s philosophy—the false abstraction and isolation of the intellectual from the material sphere in Nature and in human life—it may furnish a useful corrective to the much falser philosophy insinuated, if not inculcated, by some moralists of our own age and country. Taken altogether, the teaching of these writers seems to be that the industry which addresses itself to the satisfaction of our material wants is much more meritorious than the artistic work which gives us direct aesthetic enjoyment, or the literary work which stimulates and gratifies our intellectual cravings; while within the artistic sphere fidelity of portraiture is preferred to the creation of ideal beauty; and within the intellectual sphere, mere observation of facts is set above the theorising power by which facts are unified and explained. Some of the school to whom we allude are great enemies of materialism; but teaching like theirs is materialism of the worst description. Consistently carried400 out, it would first reduce Europe to the level of China, and then reduce the whole human race to the level of bees or beavers. They forget that when we were all comfortably clothed, housed, and fed, our true lives would have only just begun. The choice would then remain between some new refinement of animal appetite and the theorising activity which, according to Aristotle, is the absolute end, every other activity being only a means for its attainment. There is not, indeed, such a fundamental distinction as he supposed, for activities of every order are connected by a continual reciprocity of services; but this only amounts to saying that the highest knowledge is a means to every other end no less than an end in itself. Aristotle is also fully justified in urging the necessity of leisure as a condition of intellectual progress. We may add that it is a leisure which is amply earned, for without it industrial production could not be maintained at its present height. Nor should the same standard of perfection be imposed on spiritual as on material labour. The latter could not be carried on at all unless success, and not failure, were the rule. It is otherwise in the ideal sphere. There the proportions are necessarily reversed. We must be content if out of a thousand guesses and trials one should contribute something to the immortal heritage of truth. Yet we may hope that this will not always be so, that the great discoveries and creations wrought out through the waste of innumerable lives are not only the expiation of all error and suffering in the past, but are also the pledge of a future when such sacrifices shall no longer be required.After the formal and material elements of life have been separately discussed, there comes an account of the process by which they are first brought into connexion, for this is how Aristotle views generation. With him it is the information of matter by psychic force; and his notions about the part which each parent plays in the production of a new being are vitiated throughout by this mistaken assumption. Nevertheless his treatise on the subject is, for its time, one of the most wonderful works ever written, and, as we are told on good authority,257 is now less antiquated than the corresponding researches of Harvey. The philosopher’s peculiar genius for observation, analysis, and comparison will partly account for his success; but, if we mistake not, there is another and less obvious reason. Here the fatal separation of form and matter was, except at first starting, precluded by the very idea of generation; and the teleological principle of spontaneous efforts to realise a predetermined end was, as it happened, perfectly in accordance with the facts themselves.
Aristotle’s treatise on the soul is mainly devoted to a description of the theoretical faculties—sense, and thought or reason. By sense we become acquainted with the material qualities of things; by thought with their forms or ideas. It has been already mentioned that, according to our philosopher, the organism is a system of contrary forces held in equilibrium by the soul, whose seat he supposes to be in the heart. We now learn that every sensation is a disturbance of this equilibrium. In other words, the sensorium being virtually any and every mode of matter, is raised from possibility to actuality by the presence of some one force, such as heat or cold, in sufficient strength to incline the balance that way. Here we have, quite in Aristotle’s usual style, a description instead of an explanation. The atomic notion of thin films thrown off from the object of sense, and falling on the organs of sight or touch, was but a crude guess; still it has more affinity with the discoveries of a Young or a Helmholtz than scholastic phrases about potentiality and actuality. That sensation implies a disturbance of equilibrium is, indeed, an important truth; only, the equilibrium must be conceived as a balance, not of possible sensations, but of molecular states; that is to say, it must be interpreted according to the atomic theory.
Owing to the slight importance which Aristotle attaches to judgments as compared with concepts, he does not go very deeply into the question, how do we obtain our premises? He says, in remarkably emphatic language, that all knowledge is acquired either by demonstration or by induction; or rather, we may add, in the last resort by the latter only, since demon388stration rests on generals which are discovered inductively; but his generals mean definitions and abstract predicates or subjects, rather than synthetic propositions. If, however, his attention had been called to the distinction, we cannot suppose that he would, on his own principles, have adopted conclusions essentially different from those of the modern experiential school. Mr. Wallace does, indeed, claim him as a supporter of the theory that no inference can be made from particulars to particulars without the aid of a general proposition, and as having refuted, by anticipation, Mill’s assertion to the contrary. We quote the analysis which is supposed to prove this in Mr. Wallace’s own words:—
In the opening chapter of this work we endeavoured to explain how the Pythagorean philosophy arose out of the intoxicated delight inspired by a first acquaintance with the manifold properties of number and figure. If we would enter into the spirit of Platonism, we must similarly throw ourselves back into the time when the idea of a universal classification first dawned on men’s minds. We must remember how it gratified the Greek love of order combined with individuality; what unbounded opportunities for asking and answering questions it supplied; and what promises of practical regeneration it held out. Not without a shade of sadness for so many baffled efforts and so many blighted hopes, yet also with a grateful recollection of all that reason has accomplished, and with something of his own high intellectual enthusiasm, shall we listen to Plato’s prophetic words—words of deeper import than their own author knew—‘If I find any man who is able to see a One and Many in Nature, him I follow and walk in his steps as if he were a god.’137
VI.Institute of Plasma Physics, Hefei Institutes of Physical Science (ASIPP, HFIPS) undertakes the procurement package of superconducting conductors, correction coil, superconducting feeder, power supply and diagnosis, accounting for nearly 80% of China's ITER procurement package.
"I am so proud of our team and it’s a great pleasure for me working here," said BAO Liman, an engineer from ASIPP, HFIPS, who was invited to sit near Chinese National flay on the podium at the kick-off ceremony to represent Chinese team. BAO, with some 30 ASIPP engineers, has been working in ITER Tokamak department for more than ten years. Due to the suspended international traveling by COVID-19, most of the Chinese people who are engaged in ITER construction celebrated this important moment at home through live broadcasting.
One of ASIPP’s undertakes, the number 6 poloidal field superconducting coil (or PF6 coil) , the heaviest superconducting coil in the world, was completed last year, and arrived at ITER site this June. PF6 timely manufacturing and delivery made a solid foundation for ITER sub-assembly, it will be installed at the bottom of the ITER cryostat.
Last year, a China-France Consortium in which ASIPP takes a part has won the bid of the first ITER Tokamak Assembly task, TAC-1, a core and important part of the ITER Tokamak assembly.
Exactly as Bernard BIGOT, Director-General of ITER Organization, commented at a press conference after the ceremony, Chinese team was highly regarded for what they have done to ITER project with excellent completion of procurement package.
The kick-off ceremony for ITER assembly (Image by Pierre Genevier-Tarel-ITER Organization)
the number 6 poloidal field superconducting coil (Image by ASIPP, HFIPS)
ITER-TAC1 Contract Signing Ceremony (Image by ASIPP, HFIPS)
52 Sanlihe Rd., Beijing,
Copyright © 2002 - Chinese Academy of Sciences