It was my object which extended the criticism to a length out of all proportion to the scientific value of the matter and, therefore, of Herr Duehring's writings. There are two further reasons in extenuation of this lengthiness. In the first place it gave me an opportunity of developing my views, in a positive fashion, with respect to matters which are connected with this, though very different, and which are of more general scientific and practical interest to-day. I have taken the opportunity to do so in every chapter, and, as this book cannot undertake to set up a system in opposition to that of Herr Duehring, it is to be hoped that the reader will not overlook the real significance of the views which I have set forth. I have already had sufficient proof that my labors have not been altogether in vain in this regard.
On the other hand the "system-shaping" Herr Duehring is by no means an exceptional phenomenon in Germany these days. Nowadays in Germany systems of cosmogony, of natural philosophy in particular, of politics, of economics, etc., are in the habit of shooting up over night like mushrooms. The most insignificant Doctor of Philosophy, nay, even the student, has no further use for a complete "system." In the modern state, it is predicated that every citizen is able to pass judgment on all the questions upon which he is called upon to vote; in political economy it is assumed that every consumer is thoroughly acquainted with all commodities, which he has occasion to buy to maintain himself withal, and the same idea is also held as regards knowledge. Freedom of knowledge demands that a person write of that which he has not learned and proclaim this as the only sound scientific method. But Herr Duehring is one of the most conspicuous types of those absurd pseudo-scientists, who to-day occupy so conspicuous a place in Germany and drown everything with their noisy nonsense. Noisy nonsense in poetry, in philosophy, in political economy, in writing history: noisy nonsense in the professor's chair and tribune; noisy nonsense too in the claims to superiority and intellectuality above the vulgar noisy nonsense of other nations, noisy nonsense the most characteristic and mightiest product of German intellectual activity, cheap and bad, like other German products, along with which, I regret to say, they were not exhibited at Philadelphia.
So, German socialism, particularly since Herr Duehring set the example, beats the drum, and produces here and there one who prides himself upon a "science" of which he knows nothing. It is this, a sort of child's disease which marks the first conversion of the German university man to social democracy and is inseparable from him, but it will soon be thrust aside by the remarkable sound sense of our working class.
It is not my fault that I am obliged to follow Herr Duehring into a realm in which I can at the very most only claim to be a dilettante. On such occasions I have for the most part limited myself to placing the plain incontrovertible facts in contrast with the false or crooked assertions of my opponent, as in relation to jurisprudence and many instances with regard to natural science. In other places he indulges in universal views on the subject of natural science theories and therefore on a field where the professional naturalist must range out of his own particular specialty to neighboring regions, where he, according to Herr Virchow's confessions is just as good a "half-knower" as the rest of us. For slight deficiencies and unavoidable errors in the publication I hope that the same indulgence will be extended to me as has been shown the other side of the controversy.
Just as I was completing this preface I received the publishers' notice of a new important book by Herr Duehring. "New Foundations for rational Physics and Chemistry." Although I am very well aware of my deficiencies in physics and chemistry I still believe that I know my Duehring well enough, without having read the book, to venture to say that the laws of physics and chemistry there set forth are worthy of being placed alongside of Herr Duehring's former discoveries and the laws of economics, scheme of the universe, etc., examined in my writings and proved to be misunderstood or commonplace, and that the rhigometer, an instrument constructed by Herr Duehring for measuring temperature will be found to serve not only as a measure for high or low temperature but of the ignorance and arrogance of Herr Duehring. London, 11 June, 1878.
It came to me as quite a surprise that a new edition of this work was called for. The special views which it criticised are practically forgotten to-day. The work itself has not only been placed before many thousands of readers by its serial publication in "Vorwaerts" of Leipsic in 1877 and 1878, but it has also been published in large editions in its entirety. How then can there be any further interest in what I have to say about Herr Duehring?
In the first place, I fancy, that it is owing to the fact that this book, as indeed, all my writings at that time, was prohibited in Germany soon after the publication of the anti-Socialist laws. Whosoever was not fettered by the inherited officialdom of the countries of the Holy Alliance should have clearly seen the effect of this measure – the double and treble sale of the prohibited books, and the advertisement of the impotence of the gentlemen in Berlin, who issued injunctions and could not make them effective. Indeed the amiability of the Government was the cause of the publication of several new editions of my shorter writings, as I am able to affirm. I have no time for a proper revision of the text and so allow it to go to press, just as it is.
But there is still an additional circumstance. The "system" of Herr Duehring here criticised spreads over a very extensive theoretical ground and I was compelled to pursue him all over it and to place my ideas in antagonism to his. Negative criticism thereupon became positive; the polemic developed into a more or less connected exposition of dialectic methods and the socialist philosophy, of which Marx and myself are representative, and this in quite a number of places. These our philosophic ideas have had an incubation period of about twenty years since they were first given to the world in Marx's "Misère de la Philosophie" and the Communist Manifesto until they obtained a wider and wider influence through the publication of "Capital" and now find recognition and support far beyond the limits of Europe in all lands where a proletariat exists together with progressive scientific thinkers. It seems that there is also a public whose interests in this matter are sufficient to induce them to purchase the polemic against Duehring's opinions, in spite of the fact that it is now without an object, and who evidently derive pleasure from the positive development.
I must call attention to the fact, by the way, that the views here set out were, for by far the most part, developed and established by Marx, and only to a very slight degree by myself, so that it is understood that I have not represented them without his knowledge. I read the entire manuscript to him before sending it to press and the tenth chapter of the section on Political Economy was written by Marx and unfortunately had to be somewhat abbreviated by me.
It was our wont to mutually assist each other in special branches of work.
The present edition is with the exception of one chapter an unchanged edition of the former. I had no time for revision although there was much in the mode of presentation which I wanted altered. But there is incumbent upon me the duty of preparing for publication the manuscripts which Marx left, and this is much more important than anything else. Then my conscience rebels against making any changes. The book is controversial and I have an idea that it is unfair to my antagonist for me to alter anything when he cannot do so. I could only claim the right to reply to Herr Duehring's answer. But what Herr Duehring has written with respect to my attack I have not read and shall not do so, unless obliged. I am theoretically done with him. Besides I must observe the rules of literary warfare all the more closely as a despicable wrong has since been inflicted upon him by the University of Berlin. It has been chastised for this, indeed. A university which so degrades itself as to refuse permission to Herr Duehring to teach under the known circumstances should not be surprised if a Herr Schwenninger is forced upon it under circumstances just as well known.
The one chapter in which I have permitted myself any explanations is the Second of the Third Section "Theory." Here where the sole concern is the presentation of a most important