There is no doubt that the ideas of Marx respecting the basis of historical progress have already revolutionized the teaching of history in the universities, although but few professors have been honest enough to give him credit for it. The economic factor continually acquires greater importance in the eyes of the student of history, but the practical discoverer of this factor is still slighted and the results of his labors are assimilated with a self-satisfied hypocrisy which is, unfortunately, characteristic of the colleges of the English-speaking countries.

The bourgeois writers upon socialism generally content themselves with the bold statement that Marx employs the dialectic method of investigation and statement. This is so much Greek to the ordinary reader, and the subject of the dialectic as used by socialist writers requires a few words of explanation.

The first part of this work is very valuable, therefore, as showing what Marx and Engels meant when they used the expression, and as declaring their estimation of that method compared with that in general use in their day, and always, prior to their time, employed in philosophy, history and economics.

A fuller and more detailed definition of the dialectic as applied by Engels is given by that philosopher in his famous reply to Eugene Duhring known as the "Umwaelzung der Wissenschaft." In that work a more thorough and patient investigation is made into the sources of materialistic philosophy of the socialist movement, for the reputation of his antagonist appears to have acted as a spur to Engels' faculties which certainly never showed to better advantage than in that work. A portion of the argument, in fact an abstract of the general train of reasoning, with the omission of the more obviously controversial parts, has been reprinted under the title of "Socialism from Utopia to Science." The following quotation is taken from the translation prepared for the "People" in 1892:

"We also find, upon a closer enquiry, that the two poles of an antithesis, such as positive and negative, are as inseparable from as they are opposed to each other, and that, despite their antagonism, they mutually pervade each other; and in the same way we find cause and effect to be conceptions whose force exists only when applied to a single instance, but which, soon as we consider that instance in its connection with the cosmos, run into each other and dissolve in the contemplation of that universal action and reaction where cause and effect constantly change places—that which is effect, now and here, becoming, then and yonder, cause, and vice versa.

"None of these processes and methods of reasoning fits in the metaphysical framework of thought. To dialectics, however, which takes in the objects and their conceivable images above all in their connections, their sequence, their motion, their rise and decline, processes like the above are so many attestations of its own method of procedure. Nature furnishes the test to dialectics, and this much we must say for modern natural science, that it has contributed towards this test an extremely rich and daily increasing material, whereby it has demonstrated that, in the last instance, nature proceeds upon dialectical, not upon metaphysical methods, that it does not move upon the eternal sameness of a perpetually recurring circle, but that it goes through an actual historic evolution.

"This new German philosophy culminated in the system of Hegel. There for the first time—and herein consists its merit—the whole natural, historic, and intellectual world was presented as a process, i. e., engaged in perpetual motion, change, transformation and development. Viewed from this standpoint, the history of mankind no longer appeared as a wild tangle of senseless deeds of violence, all equally to be rejected by a ripened philosophic judgment, and which it were best to forget as soon as possible, but as the process of the development of mankind itself—a development whose gradual march, through all its stray paths, and its eternal law, through all its seeming fortuitousness, it now became the task of the intellect to trace and to discover."

Kirkup, in his "History of Socialism," has this to say upon the dialectic method of investigation as used by Marx: "In the system of Marx, it means that the business of enquiry is to trace the connection and concatenation in the links that make up the process of historic evolution, to investigate how one stage succeeds another in the development of society, the facts and forms of human life and history not being stable and stereotyped things, but the ever-changing manifestations of the fluent and unresting real, the course of which it is the duty of science to reveal."

The translator has endeavored to render the meaning of the original in as simple an English form as possible, and to, generally speaking, avoid technical terms.