Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: LECTUEE II. OF THE MENTAL AND PHYSICAL PREMISSES OF POLITICAL ECONOMY, AND OF THE LOGICAL CHARACTER OF THE DOCTRINES THENCE DEDUCED. § 1. In my last lecture I called attention to the conception of Political Economy formed by the leading writers on the subject in this country, and in particular I took occasion to point out the significance of the words which describe it as the ' Science of Wealth.' We have now reached a point at which it may be well to attempt some more precise determination of its character and scope, and, with a view to this, to consider the position occupied by economic speculation in relation to the two great departments of existence—matter and mind. With regard to this aspect of the case the following theory has been advanced by high authorities in this country:— " In all the intercourse of man with nature, whether we consider him as acting upon it, or as receiving impressions from it, the effect or phenomenon depends upon causes of two 'kinds: the properties of the object acting, and those of the object acted upon. Everything which can possibly happen,in which man and external things are jointly concerned, results from the joint operation of a law or laws of matter and a law or laws of the human mind. Thus the production of com by human labour is the result of a law of mind, and many laws of matter. The laws of matter are those properties of the soil and of vegetable life which cause the seed to germinate in the ground, and those properties of the human body which render food necessary to its support. The law of mind is that man desires to possess subsistence, and consequently wills the necessary means of procuring it. Laws of mind and laws of matter are so dissimilar in their nature, that it would be contrary to all principles of rational arrangemen...