If the importation of foreign cattle, for example, were made ever so free, so few could be imported, that the grazing trade of Great Britain could be… - Adam Smith

Among civilized and thriving nations, on the contrary, though a great number of people do no labor at all, many of whom consume the produce of ten times, frequently of a hundred times more labour than the greater part of those who work; yet the produce of the whole labour of the society is so great, that all are often abundantly supplied, and a workman, even of the lowest and poorest order, if he is frugal and industrious, may enjoy a greater share of the necessaries and conveniencies of life than it is possible for any savage to acquire.

The wise and virtuous man is at all times willing that his own private interests should be sacrificed to the public interest of his own particular society--that the interests of this order of society be sacrificed to the greater interest of the state. He should therefore he equally willing that all those inferior interests should be sacrificed to the greater society of all sensible and intelligent beings.

This great increase of the quantity of work which, in consequence of the division of labour, the same number of people are capable of performing, is owing to three different circumstances; first, to the increase of dexterity in every particular workman; secondly, to the saving of the time which is commonly lost in passing from one species of work to another; and lastly, to the invention of a great number of machines which facilitate and abridge labour, and enable one man to do the work of many.