T 2.1.9.12

'Tis evident, that when any one boasts of the antiquity of his family, the subjects of his vanity are not merely the extent of time and number of ancestors, but also their riches and credit, which are suppos'd to reflect a lustre on himself on account of his relation to them. He first considers these objects; is affected by them in an agreeable manner; and then returning back to himself, thro' the relation of parent and child, is elevated with the passion of pride, by means of the double relation of impressions and ideas. Since therefore the passion depends on these relations, whatever strengthens any of the relations must also encrease the passion, and whatever weakens the relations must diminish the passion. Now 'tis certain the identity of the possession strengthens the relation of ideas arising from blood and kindred, and conveys the fancy with greater facility from one generation to another, from the remotest ancestors to their posterity, who are both their heirs and their descendants. By this facility the impression is transmitted more entire, and excites a greater degree of pride and vanity.