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NATURE AND CAUSES
WEALTH OF NATIONS.
to the forest to hunt; when his coat is worn out, he clothes himself with the skin of the first large animal he kills; and when his hut begins to go to ruin, he repairs it, as well as he can, with the trees and the turf that are nearest it.
But when the division of labour has once been thoroughly introduced, the produce of a man's own labour can supply but a very small part of his occasional wants. The far greater part of them are sup
plied by the produce of other men's labour, which
As the accumulation of stock must, in the nature
proportion only as stock is previously more and more accumulated. The quantity of materials which the same number of people can work up, increases in a great proportion as labour comes to be more and more subdivided; and as the operations of each workman are gradually reduced to a greater degree of simplicity, a variety of new machines come to be invented for facilitating and abridging those operations. As the division of labour advances, therefore, in order to give constant employment to an equal number of workmen, an equal stock of provi
INTRODUCTION. sions, and a greater stock of materials and tools than what would have been necessary in a ruder state of things, must be accumulated before-hand. But the number of workmen in
branch of business generally increases with the division of labour in that branch; or rather it is the increase of their number which enables them to class and subdivide them. selves in this manner.
As the accumulation of stock is previously neces. sary for carrying on this great improvement in the productive powers of labour, so that accumulation naturally leads to this improvement. The person who employs his stock in maintaining labour, necessarily wishes to employ it in such a manner as to produce as great a quantity of work as possible. He endea. vours, therefore, both to make among his workmen the most proper distribution of employment, and to furnish them with the best machines which he can either invent or afford to purchase. His abilities, in both these respects, aregenerally in proportion to the extent of his stock, or to the number of people whom it can employ. The quantity of industry, therefore, not only increases in every country with the increase of the stock which employs it, but, in consequence of that increase, the same quantity of industry produces a much greater quantity of work.
Such are in general the effects of the increase of stock upon industry and its productive powers.
In the following book I have endeavoured to explain the nature of stock, the effects of its accumulation into capitals of different kinds, and the effects of the different employments of those capitals. This book is divided into five chapters. In the first chapter I have endeavoured to shew what are the differ