thoughts, often in words taken from her own lips. The purely scientific part of the Political Economy I did not learn from her; but it was chiefly her influence that gave to the book that general tone by which it is distinguished from all previous expositions of Political Economy that had any pretension to being scientific, and which has made it so useful in conciliating minds which those previous expositions had repelled. This tone consisted chiefly in making the proper distinction between the laws of the Production of Wealth, which are real laws of nature, dependent on the properties of objects, and the modes of its Distribution, which, subject to certain conditions, depend on human will. The common run of political economists confuse these together, under the designation of economic laws, which they deem incapable of being defeated or modified by human effort; ascribing the same necessity to things dependent on the unchangeable conditions of our earthly existence, and to those which, being but the necessary consequences of particular social arrangements, are merely co-extensive with these: given certain institutions and customs, wages, profits, and rent will be determined by certain causes; but this class of political economists drop the indispensable presupposition, and argue that these causes must, by an inherent necessity, against which no human means can avail, determine the shares which fall, in the
