The Wealth of Nations by Part 1 Chapter 4 Page 1

Of the Origin and Use of Money

When the division of labour has been once thoroughly established, it is but a very small part of a man’s wants which the produce of his own labour can supply.

He supplies the far greater part of them by exchanging that surplus part of the produce of his own labour, which is over and above his own consumption, for such parts of the produce of other men’s labour as he has occasion for. Every man thus lives by exchanging, or becomes in some measure a merchant, and the society itself grows to be what is properly a commercial society.

But when the division of labour first began to take place, this power of exchanging must frequently have been very much clogged and embarrassed in its operations. One man, we shall