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ban as well as feudal aristocracies； burgher classes as well as noble castes； were liable to become effete。 Hence it might well be concluded that the democratic movement； operating as it does to break down class barriers； was promoting instead of impeding human selection。
So we see that； according to the point of view； very different conclusions have been drawn from the application of the Darwinian idea of Selection to human society。 Darwin's other central idea； closely bound up with this； that； namely； of the 〃struggle for existence〃 also has been diversely utilised。 But discussion has chiefly centered upon its signification。 And while some endeavour to extend its application to everything； we find others trying to limit its range。 The conception of a 〃struggle for existence〃 has in the present day been taken up into the social sciences from natural science； and adopted。 But originally it descended from social science to natural。 Darwin's law is； as he himself said； only Malthus' law generalised and extended to the animal world： a growing disproportion between the supply of food and the number of the living is the fatal order whence arises the necessity of universal struggle； a struggle which； to the great advantage of the species； allows only the best equipped individuals to survive。 Nature is regarded by Huxley as an immense arena where all living beings are gladiators。 （〃Evolution and Ethics〃； page 200； 〃Collected Essays〃； Vol。 IX； London； 1894。）
Such a generalisation was well adapted to feed the stream of pessimistic thought； and it furnished to the apologists of war； in particular； new arguments； weighted with all the authority which in these days attaches to scientific deliverances。 If people no longer say； as Bonald did； and Moltke after him； that war is a providential fact； they yet lay stress on the point that it is a natural fact。 To the peace party Dragomirov's objection is urged that its attempts are contrary to the fundamental laws of nature； and that no sea wall can hold against breakers that come with such gathered force。
But in yet another quarter Darwinism was represented as opposed to philanthropic intervention。 The defenders of the orthodox political economy found in it support for their tenets。 Since in the organic world universal struggle is the condition of progress； it seemed obvious that free competition must be allowed to reign unchecked in the economic world。 Attempts to curb it were in the highest degree imprudent。 The spirit of Liberalism here seemed in conformity with the trend of nature： in this respect； at least； contemporary naturalism； offspring of the discoveries of the nineteenth century； brought reinforcements to the individualist doctrine； begotten of the speculations of the eighteenth： but only； it appeared； to turn mankind away for ever from humanitarian dreams。 Would those whom such conclusions repelled be content to oppose to nature's imperatives only the protests of the heart？ There were some who declared； like Brunetiere； that the laws in question； valid though they might be for the animal kingdom； were not applicable to the human。 And so a return was made to the classic dualism。 This indeed seems to be the line that Huxley took； when； for instance； he opposed to the cosmic process an ethical process which was its reverse。
But the number of thinkers whom this antithesis does not satisfy grows daily。 Although the pessimism which claims authorisation from Darwin's doctrines is repugnant to them； they still are unable to accept the dualism which leaves a gulf between man and nature。 And their endeavour is to link the two by showing that while Darwin's laws obtain in both kingdoms； the conditions of their application are not the same： their forms； and； consequently； their results； vary with the varying mediums in which the struggle of living beings takes place； with the means these beings have at disposal； with the ends even which they propose to themselves。
Here we have the explanation of the fact that among determined opponents of war partisans of the 〃struggle for existence〃 can be found： there are disciples of Darwin in the peace party。 Novicow； for example； admits the 〃combat universel〃 of which Le Dantec （〃Les Luttes entre Societies humaines et leurs phases successives〃； Paris； 1893；） speaks； but he remarks that at different stages of evolution； at different stages of life the same weapons are not necessarily employed。 Struggles of brute force； armed hand to hand conflicts； may have been a necessity in the early phases of human societies。 Nowadays； although competition may remain inevitable and indispensable； it can assume milder forms。 Economic rivalries； struggles between intellectual influences； suffice to stimulate progress： the processes which these admit are； in the actual state of civilisation； the only ones which attain their end without waste； the only ones logical。 From one end to the other of the ladder of life； struggle is the order of the day； but more and more as the higher rungs are reached； it takes on characters which are proportionately more 〃humane。〃
Reflections of this kind permit the introduction into the economic order of limitations to the doctrine of 〃laisser faire； laisser passer。〃 This appeals； it is said； to the example of nature where creatures； left to themselves； struggle without truce and without mercy； but the fact is forgotten that upon industrial battlefields the conditions are different。 The competitors here are not left simply to their natural energies： they are variously handicapped。 A rich store of artificial resources exists in which some participate and others do not。 The sides then are unequal； and as a consequence the result of the struggle is falsified。 〃In the animal world；〃 said De Laveleye （〃Le socialisme contemporain〃； page 384 （6th edition）； Paris； 1891。）； criticising Spencer； 〃the fate of each creature is determined by its individual qualities； whereas in civilised societies a man may obtain the highest position and the most beautiful wife because he is rich and well…born； although he may be ugly； idle or improvident； and then it is he who will perpetuate the species。 The wealthy man； ill constituted； incapable； sickly； enjoys his riches and establishes his stock under the protection of the laws。〃 Haycraft in England and Jentsch in Germany have strongly emphasised these 〃anomalies；〃 which nevertheless are the rule。 That is to say that even from a Darwinian point of view all social reforms can readily be justified which aim at diminishing； as Wallace said； inequalities at the start。
But we can go further still。 Whence comes the idea that all measures inspired by the sentiment of solidarity are contrary to Nature's trend？ Observe her carefully； and she will not give lessons only in individualism。 Side by side with the struggle for existence do we not find in operation what Lanessan calls 〃association for existence。〃 Long ago； Espinas had drawn attention to 〃societies of animals；〃 temporary or permanent； and to the kind of morality that arose in them。 Since then； naturalists have often insisted upon the importance of various forms of symbiosis。 Kropotkin in 〃Mutual Aid〃 has ch