But what must be the character of that policy, which aims at national prosperity through the impoverishment of a large proportion of the home produce… - Jean-Baptiste Say

Labour, upon whichever of those operations it be bestowed, is productive, because it concurs in the creation of a product. Thus the labour of the philosopher, whether experimental or literary, is productive; the labour of the adventurer or master-manufacturer is productive, although he perform no actual manual work; the labour of every operative workman is productive, from the common day-labourer in agriculture, to the pilot that governs the motion of a ship.

Political economy has only become a science since it has been confined to the results of inductive investigation.

There is no security of property, where a despotic authority can possess itself of the property of the subject against his consent. Neither is there such security, where the consent is merely nominal and delusive.