It is not the business of a preface to anticipate the argument of a book, still less to obtrude personal opinions. Kautsky's labored essay, to which this book is the brilliant reply, has been translated into English, and is widely known. The case against the possibility of political democracy in a capitalist society could hardly be better put than in these pages, and the polemic against purely evolutionary methods is formidable. The English reader of to-day is aware, however, that the Russian revolution has not stood still since Trotsky wrote. We have to realize that, even in the view of the Bolsheviks themselves, the evolution towards Communism is in Russia only in its early stages. The recent compromises imply, at the best, a very long period of transition, through controlled capitalist production, to Socialism. Experience has proved that catastrophic revolution and the seizure of political power do not in themselves avail to make a Socialist society. The economic development in that direction has actually been retarded, and Russia, under the stress of civil war, has retrograded into a primitive village system of production and exchange. To every reader's mind the question will be present whether the peculiar temperament of the Bolsheviks has led them to over-estimate the importance of political power, to underestimate the inert resistance of the majority, and to risk too much for the illusion of dictating. To that question history has not yet given the decisive answer. The daemonic will that made the revolution and defended it by achieving the impossible, may yet vindicate itself against the dull trend of impersonal forces. Dictatorship vs. Democracy Introduction The origin of this book was the learned brochure by Kautsky with the same name. My work was begun at the most intense period of the struggle with Denikin and Yudenich, and more than once was interrupted by events at the front. In the most difficult days, when the first chapters were being written, all the attention of Soviet Russia was concentrated on purely military problems. We were obliged to defend first of all the very possibility of Socialist economic reconstruction. We could busy ourselves little with industry, further than was necessary to maintain the front. We were obliged to expose Kautsky's economic slanders mainly by analogy with his political slanders. The monstrous assertions of Kautsky--to the effect that the Russian workers were incapable of labor discipline and economic self-control--could, at the beginning of this work, nearly a year ago, be combatted chiefly by pointing to the high state of discipline and heroism in battle of the Russian workers at the front created by the civil war. That experience was more than enough to explode these bourgeois slanders. But now a few months have gone by, and we can turn to facts and conclusions drawn directly from the economic life of Soviet Russia.