A similar criticism applies to all our predecessors2 with the single exception of Democritus. Not one of them penetrated3 below the surface or made a thorough examination of a single one of the problems. Democritus, however, does seem not only to have thought carefully about all the problems, but also to be distinguished4 from the outset by his method. For, as we are saying, none of the other philosophers made any definite statement about growth, except such as any amateur might have made. They said that things grow ‘by the accession of like to like’, but they did not proceed to explain the manner of this accession. Nor did they give any account of ‘combination’: and they neglected almost every single one of the remaining problems, offering no explanation, e.g. of ‘action’ or ‘passion’ how in physical actions one thing acts and the other undergoes action. Democritus and Leucippus, however, postulate5 the ‘figures’, and make ‘alteration’ and coming-to-be result from them. They explain coming-to-be and passing-away by their ‘dissociation’ and ‘association’, but ‘alteration’ by their ‘grouping’ and ‘Position’. And since they thought that the ‘truth lay in the appearance, and the appearances are conflicting and infinitely6 many, they made the ‘figures’ infinite in number. Hence-owing to the changes of the compound-the same thing seems different and conflicting to different people: it is ‘transposed’ by a small additional ingredient, and appears utterly7 other by the ‘transposition’ of a single constituent8. For Tragedy and Comedy are both composed of the same letters.
Since almost all our predecessors think (i) that coming-to-be is distinct from ‘alteration’, and (ii) that, whereas things ‘alter’ by change of their qualities, it is by ‘association’ and ‘dissociation’ that they come-to-be and pass-away, we must concentrate our attention on these theses. For they lead to many perplexing and well-grounded dilemmas9. If, on the one hand, coming-to-be is ‘association’, many impossible consequences result: and yet there are other arguments, not easy to unravel11, which force the conclusion upon us that coming-to-be cannot possibly be anything else. If, on the other hand, coming-to-be is not ‘association’, either there is no such thing as coming-to-be at all or it is ‘alteration’: or else we must endeavour to unravel this dilemma10 too-and a stubborn one we shall find it. The fundamental question, in dealing12 with all these difficulties, is this: ‘Do things come-to-be and “alter” and grow, and undergo the contrary changes, because the primary “reals” are indivisible magnitudes? Or is no magnitude indivisible?’ For the answer we give to this question makes the greatest difference. And again, if the primary ‘reals’ are indivisible magnitudes, are these bodies, as Democritus and Leucippus maintain? Or are they planes, as is asserted in the Timaeus?
To resolve bodies into planes and no further-this, as we have also remarked elsewhere, in itself a paradox13. Hence there is more to be said for the view that there are indivisible bodies. Yet even these involve much of paradox. Still, as we have said, it is possible to construct ‘alteration’ and coming-to-be with them, if one ‘transposes’ the same by ‘turning’ and ‘intercontact’, and by ‘the varieties of the figures’, as Democritus does. (His denial of the reality of colour is a corollary from this position: for, according to him, things get coloured by ‘turning’ of the ‘figures’.) But the possibility of such a construction no longer exists for those who divide bodies into planes. For nothing except solids results from putting planes together: they do not even attempt to generate any quality from them.
Lack of experience diminishes our power of taking a comprehensive view of the admitted facts. Hence those who dwell in intimate association with nature and its phenomena14 grow more and more able to formulate15, as the foundations of their theories, principles such as to admit of a wide and coherent development: while those whom devotion to abstract discussions has rendered unobservant of the facts are too ready to dogmatize on the basis of a few observations. The rival treatments of the subject now before us will serve to illustrate16 how great is the difference between a ‘scientific’ and a ‘dialectical’ method of inquiry. For, whereas the Platonists argue that there must be atomic magnitudes ‘because otherwise “The Triangle” will be more than one’, Democritus would appear to have been convinced by arguments appropriate to the subject, i.e. drawn17 from the science of nature. Our meaning will become clear as we proceed. For to suppose that a body (i.e. a magnitude) is divisible through and through, and that this division is possible, involves a difficulty. What will there be in the body which escapes the division?
If it is divisible through and through, and if this division is possible, then it might be, at one and the same moment, divided through and through, even though the dividings had not been effected simultaneously18: and the actual occurrence of this result would involve no impossibility. Hence the same principle will apply whenever a body is by nature divisible through and through, whether by bisection, or generally by any method whatever: nothing impossible will have resulted if it has actually been divided-not even if it has been divided into innumerable parts, themselves divided innumerable times. Nothing impossible will have resulted, though perhaps nobody in fact could so divide it.
Since, therefore, the be dy is divisible through and through, let it have been divided. What, then, will remain? A magnitude? No: that is impossible, since then there will be something not divided, whereas ex hypothesis the body was divisible through and through. But if it be admitted that neither a body nor a magnitude will remain, and yet division is to take place, the constituents19 of the body will either be points (i.e. without magnitude) or absolutely nothing. If its constituents are nothings, then it might both come-to-be out of nothings and exist as a composite of nothings: and thus presumably the whole body will be nothing but an appearance. But if it consists of points, a similar absurdity20 will result: it will not possess any magnitude. For when the points were in contact and coincided to form a single magnitude, they did not make the whole any bigger (since, when the body was divided into two or more parts, the whole was not a bit smaller or bigger than it was before the division): hence, even if all the points be put together, they will not make any magnitude.
But suppose that, as the body is being divided, a minute section-a piece of sawdust, as it were-is extracted, and that in this sense-a body ‘comes away’ from the magnitude, evading21 the division. Even then the same argument applies. For in what sense is that section divisible? But if what ‘came away’ was not a body but a separable form or quality, and if the magnitude is ‘points or contacts thus qualified’: it is paradoxical that a magnitude should consist of elements, which are not magnitudes. Moreover, where will the points be? And are they motionless or moving? And every contact is always a contact of two somethings, i.e. there is always something besides the contact or the division or the point.
These, then, are the difficulties resulting from the supposition that any and every body, whatever its size, is divisible through and through. There is, besides, this further consideration. If, having divided a piece of wood or anything else, I put it together, it is again equal to what it was, and is one. Clearly this is so, whatever the point at which I cut the wood. The wood, therefore, has been divided potentially through and through. What, then, is there in the wood besides the division? For even if we suppose there is some quality, yet how is the wood dissolved into such constituents and how does it come-to-be out of them? Or how are such constituents separated so as to exist apart from one another? Since, therefore, it is impossible for magnitudes to consist of contacts or points, there must be indivisible bodies and magnitudes. Yet, if we do postulate the latter, we are confronted with equally impossible consequences, which we have examined in other works.’ But we must try to disentangle these perplexities, and must therefore formulate the whole problem over again.
On the one hand, then, it is in no way paradoxical that every perceptible body should be indivisible as well as divisible at any and every point. For the second predicate will at. tach to it potentially, but the first actually. On the other hand, it would seem to be impossible for a body to be, even potentially, divisible at all points simultaneously. For if it were possible, then it might actually occur, with the result, not that the body would simultaneously be actually both (indivisible and divided), but that it would be simultaneously divided at any and every point. Consequently, nothing will remain and the body will have passed-away into what is incorporeal22: and so it might come-to-be again either out of points or absolutely out of nothing. And how is that possible?
But now it is obvious that a body is in fact divided into separable magnitudes which are smaller at each division-into magnitudes which fall apart from one another and are actually separated. Hence (it is urged) the process of dividing a body part by part is not a ‘breaking up’ which could continue ad infinitum; nor can a body be simultaneously divided at every point, for that is not possible; but there is a limit, beyond which the ‘breaking up’ cannot proceed. The necessary consequence-especially if coming-to-be and passing-away are to take place by ‘association’ and ‘dissociation’ respectively-is that a body must contain atomic magnitudes which are invisible. Such is the argument which is believed to establish the necessity of atomic magnitudes: we must now show that it conceals23 a faulty inference, and exactly where it conceals it.
For, since point is not ‘immediately-next’ to point, magnitudes are ‘divisible through and through’ in one sense, and yet not in another. When, however, it is admitted that a magnitude is ‘divisible through and through’, it is thought there is a point not only anywhere, but also everywhere, in it: hence it is supposed to follow, from the admission, that the magnitude must be divided away into nothing. For it is supposed-there is a point everywhere within it, so that it consists either of contacts or of points. But it is only in one sense that the magnitude is ‘divisible through and through’, viz. in so far as there is one point anywhere within it and all its points are everywhere within it if you take them singly one by one. But there are not more points than one anywhere within it, for the points are not ‘consecutive’: hence it is not simultaneously ‘divisible through and through’. For if it were, then, if it be divisible at its centre, it will be divisible also at a point ‘immediately-next’ to its centre. But it is not so divisible: for position is not ‘immediately-next’ to position, nor point to point-in other words, division is not ‘immediately-next’ to division, nor composition to composition.
Hence there are both ‘association’ and ‘dissociation’, though neither (a) into, and out of, atomic magnitudes (for that involves many impossibilities), nor (b) so that division takes place through and through-for this would have resulted only if point had been ‘immediately-next’ to point: but ‘dissociation’ takes place into small (i.e. relatively24 small) parts, and ‘association’ takes place out of relatively small parts.
It is wrong, however, to suppose, as some assert, that coming-to-be and passing-away in the unqualified and complete sense are distinctively25 defined by ‘association’ and ‘dissociation’, while the change that takes place in what is continuous is ‘alteration’. On the contrary, this is where the whole error lies. For unqualified coming-to-be and passing-away are not effected by ‘association’ and ‘dissociation’. They take place when a thing changes, from this to that, as a whole. But the philosophers we are criticizing suppose that all such change is ‘alteration’: whereas in fact there is a difference. For in that which underlies26 the change there is a factor corresponding to the definition and there is a material factor. When, then, the change is in these constitutive factors, there will be coming-to-be or passing-away: but when it is in the thing’s qualities, i.e. a change of the thing per accidents, there will be ‘alteration’.
‘Dissociation’ and ‘association’ affect the thing’s susceptibility to passing-away. For if water has first been ‘dissociated’ into smallish drops, air comes-to-be out of it more quickly: while, if drops of water have first been ‘associated’, air comes-to-be more slowly. Our doctrine27 will become clearer in the sequel.’ Meantime, so much may be taken as established-viz. that coming-to-be cannot be ‘association’, at least not the kind of ‘association’ some philosophers assert it to be.
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1
inquiry
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| n.打听，询问，调查，查问 | |
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predecessors
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| n.前任( predecessor的名词复数 )；前辈；（被取代的）原有事物；前身 | |
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penetrated
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| adj. 击穿的，鞭辟入里的 动词penetrate的过去式和过去分词形式 | |
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4
distinguished
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| adj.卓越的，杰出的，著名的 | |
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5
postulate
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| n.假定，基本条件；vt.要求，假定 | |
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6
infinitely
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| adv.无限地，无穷地 | |
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7
utterly
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| adv.完全地，绝对地 | |
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8
constituent
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| n.选民；成分，组分；adj.组成的，构成的 | |
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dilemmas
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| n.左右为难( dilemma的名词复数 )；窘境，困境 | |
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dilemma
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| n.困境，进退两难的局面 | |
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11
unravel
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| v.弄清楚（秘密）；拆开，解开，松开 | |
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12
dealing
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| n.经商方法，待人态度 | |
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13
paradox
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| n.似乎矛盾却正确的说法；自相矛盾的人(物) | |
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14
phenomena
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| n.现象 | |
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15
formulate
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| v.用公式表示；规划；设计；系统地阐述 | |
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16
illustrate
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| v.举例说明，阐明；图解，加插图 | |
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17
drawn
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| v.拖，拉，拔出；adj.憔悴的，紧张的 | |
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simultaneously
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| adv.同时发生地，同时进行地 | |
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constituents
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| n.选民( constituent的名词复数 )；成分；构成部分；要素 | |
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absurdity
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| n.荒谬，愚蠢；谬论 | |
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21
evading
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| 逃避( evade的现在分词 )； 避开； 回避； 想不出 | |
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incorporeal
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| adj.非物质的，精神的 | |
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23
conceals
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| v.隐藏，隐瞒，遮住( conceal的第三人称单数 ) | |
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relatively
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| adv.比较...地，相对地 | |
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distinctively
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| adv.特殊地，区别地 | |
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26
underlies
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| v.位于或存在于（某物）之下( underlie的第三人称单数 )；构成…的基础（或起因），引起 | |
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doctrine
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| n.教义；主义；学说 | |
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