In Adam Smith's earlier work, "The Theory of Moral Sentiments," which I think is just as important, he made the observation that the value of any government is judged in proportion to the extent that it makes its people happy.
Nunha obra anterior de Adam Smith, "A teoria dos sentimentos morais", que, na miña opinión, é igual de importante, comenta que o valor de calquera goberno xúlgase en proporción á medida en que fai feliz á xente.