"The spectator, therefore, must find it much more difficult to sympathize entirely, and keep perfect time, with his sorrow, than thoroughly to enter into his joy, and must depart much further from his own natural and ordinary temper of mind in the one case than in the other."
— Smith, Adam (1723-1790)
(p. 45; cf. pp. 98-9 in 1759 ed.)
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).