It is not by the absolute quantity of produce obtained by either class, that we can correctly judge of the rate of profit, rent, and wages, but by the quantity of labour required to obtain that produce.
-- David Ricardo
   
David Ricardo   Name:
David Ricardo
Type:
Economist
Nationality:
British
Birth:
April 18, 1772
Death:
September 11, 1823
https://www.nutquote.com/quote/David_Ricardo