The Wealth of Nations by Part 2 Chapter 5 Page 17

something for which there is a demand at home. It as effectually replaces the capital of the person who produces that surplus, and as effectually enables him to continue his business; the service by which the capital of a wholesale merchant chiefly contributes to support the productive labour, and to augment the value of the annual produce of the society to which he belongs.

It is of more consequence that the capital of the manufacturer should reside within the country. It necessarily puts into motion a greater quantity of productive labour, and adds a greater value to the annual produce of the land and labour of the society.

It may, however, be very useful to the country, though it should not reside within it. The capitals of the British manufacturers who work up the flax and hemp