be instructed always to strike out that phrase as an erratum; and to substitute, "I choose to take for granted". In order to judge between them we have to come to some conclusion as to what is the right method of conceiving of history, and probably to try many methods before reaching that which arranges the shifting and complicated chaos of phenomena in something like an intelligible order. A first step and a necessary basis, as I believe, for all the more complex inquiries will have to be found by disentangling the various orders of laws (if I may so speak), and considering by themselves those laws of industrial growth which are nearest to the physical sciences in certain respects, and which, within certain limits, can be considered apart, inasmuch as they represent the working of forces which are comparatively independent of forces of a higher order. What I should say for Political Economists is that they have done a good deal in this direction; that they have explained, and, I suppose, with considerable accuracy, what is the actual nature of the industrial mechanism; that they have explained fairly its working in certain cases where the economic are practically also the sole or dominant motives; and that they have thus laid down certain truths which require attention even when we take into account the play of other more complex and, as we generally say, higher motives. We may indeed hope and believe that society will ultimately be constituted upon a different system; and that for the organisation which has spontaneously and unconsciously developed itself, another will be substituted which will correspond more closely to some principles of justice, and give freer scope for the full development of the human faculties. That is a very large question: I only say that, in any case, all genuine progress consists in a development of institutions already existing, and therefore that a full understanding of the working of the present system is essential to a rational consideration of possible improvements. The Socialist may look forward to a time--let us hope that it may come soon!--when nobody will have any grievances. But his schemes will be the better adapted for the realisation of his hopes in proportion as he has fully understood what is the part played by each factor of the existing system; what is its function, and how that function may be more efficiently discharged by any substitute. Only upon that condition can he avoid the common error of inventing some scheme which is in sociology what schemes for perpetual motion are in mechanics; plans for making everything go right by condemning some existing portion of the system without fully understanding how it has come into existence, and what is the part which it plays in the whole. I think myself that a study of the good old orthodox system of Political Economy is useful in this sense, even where it is wrong; because at least it does give a