This is done not merely for the sake of connexion and completeness. The presentation of the subject-matter is improved. As far as circumstances in any way permit, many points only hinted at in the earlier book are here worked out more fully, whilst, conversely, points worked out fully there are only touched upon in this volume. The sections on the history of the theories of value and of money are now, of course, left out altogether. The reader of the earlier work will find, however, in the notes to the first chapter additional sources of reference relative to the history of those theories.
Every beginning is difficult, holds in all sciences.
To understand the first chapter, especially the section that contains the analysis of commodities, will, therefore, present the greatest difficulty. That which concerns more especially the analysis of the substance of value and the magnitude of value, I have, as much as it was possible, popularised. Nevertheless, the human mind has for more than 2,000 years sought in vain to get to the bottom of it all, whilst on the other hand, to the successful analysis of much more composite and complex forms, there has been at least an approximation. Because the body, as an organic whole, is more easy of study than are the cells of that body. In the analysis of economic forms, moreover, neither microscopes nor chemical reagents are of use.