" Aristotle taught that virtue is something we cultivate with practice: “we become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.”50 Rousseau held a similar view. The more a country asks of its citizens, the greater their devotion to it. “In a well-ordered city every man flies to the assemblies.” Under a bad government, no one participates in public life “because no one is interested in what happens there” and “domestic cares are all-absorbing.” Civic virtue is built up, not spent down, by strenuous citizenship. Use it or lose it, Rousseau says, in effect. “As soon as public service ceases to be the chief business of the citizens, and they would rather serve with their money than with their persons, the state is not far from its fall.”51 "

― Michael J. Sandel , What Money Can't Buy: The Moral Limits of Markets