"But when a father fails in the ordinary degree of parental affection towards a son; when a son seems to want that filial reverence which might be expected to his father; when brothers are without the usual degree of brotherly affection; when a man shuts his breast against compassion, and refuses to relieve the misery of his fellow-creatures, when he can with the greatest ease; in all these cases, though every body blames the conduct, nobody imagines that those who might have reason, perhaps, to expect more kindness, have any right to extort it by force."
— Smith, Adam (1723-1790)
(pp. 175-7; cf. pp. 80-1 in Liberty Fund 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).