It is not very unreasonable that the rich should contribute to the public expense, not only in proportion to their revenue, but something more than in that proportion.
Adam SmithGoods can serve many other purposes besides purchasing money, but money can serve no other purpose besides purchasing goods.
Adam SmithThe man who barely abstains from violating either the person, or the estate, or the reputation of his neighbours, has surely very little positive merit. He fulfils, however, all the rules of what is peculiarly called justice, and does every thing which his equals can with propriety force him to do, or which they can punish him for not doing. We may often fulfil all the rules of justice by sitting still and doing nothing.
Adam SmithThe sneaking arts of underling tradesmen are thus erected into political maxims for the conduct of a great empire; for it is the most underling tradesmen only who make it a rule to employ chiefly their own customers. A great trader purchases his good always where they are cheapest and best, without regard to any little interest of this kind.
Adam Smith