"Justice, the last and greatest of the four cardinal virtues, took place, according to this system, when each of those three faculties of the mind, confined itself to it's proper office, without attempting to encroach upon that of any other; when reason directed and passion obeyed, and when each passion performed its proper duty, and exerted itself towards its proper object easily and without reluctance, and with that degree of force and energy, which was suitable to the value of what it pursued."
— Smith, Adam (1723-1790)
See The Theory of Moral Sentiments: By Adam Smith (London: Printed for A. Millar; and A. Kincaid and J. Bell, in Edinburgh, 1759). <Link to ESTC><Link to ECCO-TCP>
Reading Adam Smith, The Theory of Moral Sentiments, ed. D.D. Raphael and A.L. Macfie (Indianapolis: Liberty Fund, 1984).