This introduction was first published in the Neue Zeit (see Translator’s Preface, p. 5) of March 7, 14 and 21, 1903, by Karl Kautsky, with the following explanation:

“This article has been found among the posthumous papers of Karl Marx. It is a fragmentary sketch of a treatise that was to have served as an introduction to his main work, which he had been writing for many years and whose outline was clearly formed in his mind. The manuscript is dated August 23, 1857.... As the idea is very often indicated only in fragmentary sentences, I have taken the liberty of introducing here and there changes in style, insertions of words, etc.... A mere reprint of the original would have made it unintelligible.... Not all the words in the manuscript are legible....

“Wherever there could be no doubt as to the necessity of corrections, I did so without indicating them in the text; in other cases I put all insertions in brackets. Wherever I am not certain as to whether I have deciphered a word correctly, I have put an interrogation point after it; other changes are specially noted. In all other respects this is an exact reprint of the original, whose fragmentary and incomplete passages serve to remind us only too painfully of the many treasures of thought which went down to the grave with Marx, treasures which would have sufficed for generations if Marx had not so anxiously avoided giving to the world any of his ideas until he had tested them repeatedly from every conceivable point of view and had given them a wording that would be incontrovertible. In spite of its fragmentary character it opens before us a wealth of new points of view.”