I am answering your letter first because Liebknecht s is still with Marx, who cannot locate it just now. It was not Hepner  but Yorck s  letter to him, signed by the Committee, which caused us here to be afraid that your imprisonment would be used by the Party authorities, which unfortunately are entirely Lassallean, to transform the Volksstaat into an honest Neue-Sozial-Demokrat. Yorck plainly confessed to such an intention, and as the Committee claimed to have the right to appoint and remove the editors the danger was surely great enough. Hepner s impending deportation  gave them another pretext for carrying out these plans. Under these circumstances it was absolutely necessary for us to know what the situation was; hence this correspondence. ... One must not allow oneself to be misled by the cry for unity. Those who have this word most often on their lips are those who sow the most dissension, just as at present the Jura Bakuninists in Switzerland, who have provoked all the splits, scream for nothing so much as for unity. Those unity fanatics are either the people of limited intelligence who want to stir everything up together into one nondescript brew, which, the moment it is left to settle, throws up the differences again in much more acute opposition because they are now all together in one pot (you have a fine example of this in Germany with the people who preach the reconciliation of the workers and the petty bourgeoisie)--or else they are people who consciously or unconsciously (like M hlberger[*], for instance) want to adulterate the movement. For this reason the greatest sectarians and the biggest brawlers and rogues are at certain moments the loudest shouters for unity. Nobody in our lifetime has given us more trouble and been more treacherous than the unity shouters. Naturally every party leadership wants to see successes and this is quite good too. But there are circumstances in which one must have the courage to sacrifice momentary success for more important things. Especially a party like ours, whose ultimate success is so absolutely certain, and which has developed so enormously in our own lifetime and under our own eyes, momentary success is by no means always and absolutely necessary. Take the International, for instance. After the Commune it had its colossal success. The bourgeoisie, struck all of a heap, ascribed omnipotence to it. The great mass of the membership believed things would stay like that for all eternity. We knew very well that the bubble must burst. All the riff-raff attached themselves to it. The sectarians within it began to flourish, and misused the International in the hope that the most stupid and mean actions would be permitted them. We did not allow that. Well knowing that the bubble must burst some time all the same, our concern was not to delay the catastrophe but to take care that the International emerged from it pure and unadulterated. The bubble burst at the Hague, and you know that the majority of Congress members went home sick with disappointment. And yet nearly all these disappointed people, who imagined they would find the ideal of universal brotherhood and reconciliation in the International, had far more bitter quarrels at home than those which broke out at the Hague! Now the sectarian quarrel-mongers are preaching conciliation and decrying us as the intolerant and the dictators. And if we had come out in a conciliatory way at the Hague, if we had hushed up the breaking out of the split--what would have been the result? The sectarians, especially the Bakuninists, would have got another year in which to perpetrate, in the name of the International, much greater stupidities and infamies even; the workers of the most developed countries would have turned away in disgust; the bubble would not have burst but, pierced by pinpricks, would have slowly collapsed, and the next Congress, which would have been bound to bring the crisis anyhow, would have turned into the lowest kind of personal row, because principles had already been sacrificed at the Hague. Then the International would indeed have gone to pieces---gone to pieces through "unity"! Instead of this we have now got rid of the rotten elements with honour to ourselves--the members of the Commune who were present at the last decisive session say that no session of the Commune left such a terrible impression upon them as this session of the tribunal which passed judgment on the traitors to the European proletariat--we have left them to expend all their forces in lying, slander and intrigue for ten months--and where are they? They, the alleged representatives of the great majority of the International, now announce that they do not dare to come to the next Congress (more details in an article which is being sent off for the Volksstaat with this letter). And if we had to do it again we should not, taking it all together, act any differently -- tactical mistakes are of course always committed. In any case I think the efficient elements among the Lassalleans will fall to you of themselves in course of time and that it would therefore be unwise to break off the fruit before it is ripe, as the unity people want. For the rest, old Hegel has already said: A party proves itself a victorious party by the fact that it splits and can stand the split. The movement of the proletariat necessarily passes through different stages of development; at every stage one section of people lags behind and does not join in the further advance; and this alone explains why it is that actually the "solidarity of the proletariat" is everywhere realised in different party groupings which carry on life and death feuds with one another, as the Christian sects in the Roman Empire did amidst the worst persecutions. If the Neue Sozial-Demokrat for example has more subscribers than the Volksstaat, you ought not to forget either that each sect is necessarily fanatic and through this fanaticism obtains, particularly in regions where it is new (as for instance the General Association of German Workers is in Schleswig-Holstein), much greater momentary successes than the Party, which simply represents the real movement, without any sectarian oddities. But on the other hand, fanaticism does not last long. I have to close my letter as the mail is about to be dispatched. Let me only add hurriedly: Marx cannot tackle Lassalle  until the French translation is finished (approx end of July), after which he will definitely need a rest as he has greatly overworked himself. That you have been serving your jail sentence stoically and are studying is very good. We shall all be glad to see you here next year. Cordial greetings to Liebknecht.
Letters: Marx-Engels Correspondence 1873