The Wealth of Nations by Part 4 Chapter 9 Page 16

multiply the value of a part of the rude produce about seven thousand and two hundred times, he in reality adds nothing to the value of the whole annual amount of the rude produce. The working of that lace costs him perhaps two years’ labour.

The thirty pounds which he gets for it when it is finished is no more than the repayment of the subsistence which he advances to himself during the two years that he is employed about it. The value which, by every day’s, month’s, or year’s labour, he adds to the flax does no more than replace the value of his own consumption during that day, month, or year. At no moment of time, therefore, does he add anything to the value of the whole annual amount of the rude produce of the land: the portion of that produce which he is continually consuming being always