However this may be, it is certain that, in order to understand Marx, a much greater amount of time and labour Is necessary, than a mere layman can be expected to devote to the task. And now we come to the third and greatest difficulty. From beginning to end, Marx's work is from one and the same mould; the various parts of his teaching are so inti mately interwoven that no single part can be rightly under stood without acquiring a knowledge of the others. The reader of the first chapters cannot; of course, be aware of the contents of the subsequent ones, and must therefore oh tain a false impression of the master's teaching as long as he has not achieved the study of all three volumes of Capital.