The Wealth of Nations by Part 1 Chapter 10 Page 11

much more liberal; and it is so accordingly.

The profits of stock seem to be very little affected by the easiness or difficulty of learning the trade in which it is employed. All the different ways in which stock is commonly employed in great towns seem, in reality, to be almost equally easy and equally difficult to learn. One branch either of foreign or domestic trade cannot well be a much more intricate business than another.

Thirdly, the wages of labour in different occupations vary with the constancy or inconstancy of employment.

Employment is much more constant in some trades than in others.

In the greater part of manufacturers, a journeyman may be pretty sure of employment almost every day in the year that he is