"Political economy is perhaps the only science whose immediate object is the universal beneficence and prosperity of men; because it is it that claims to teach the Government how it can preserve and increase the wealth of nations; encourage agriculture, from which abundance will arise; make trade flourish, which will divide the goods of the earth among its inhabitants according to their industry; perfect the arts, which will multiply the enjoyments of men, by making the progress of all the other sciences tend to their advantage. [...] A science which is announced as having as its aim the prosperity of all men becomes almost an object of derision if it is enclosed in a vain theory, the application of which is never undertaken. Such is perhaps the fate of Political Economy today. [...] Certainly, one of the great causes of their neglect of theories which could have increased their enlightenment would be found in the character of the men of government; but since we cannot expect them to be sensitive to the criticism of men of letters, or to submit with docility to the lessons that are claimed to be given to them, it is a question here of seeking the faults of the writings on Political Economy, and not theirs, whether we want to increase the influence of political theories on Governments, and bring them closer to their purpose."