by degrees, and at last changes into the opposite passion. The mind finds a satisfaction and ease in the view of objects, to which it is accustom'd, and naturally prefers them to others, which, tho', perhaps, in themselves more valuable, are less known to it. By the same quality of the mind we are seduc'd into a good opinion of ourselves, and of all objects, that belong to us. They appear in a stronger light; are more agreeable; and consequently fitter subjects of pride and vanity, than any other.
It may not be amiss, in treating of the affection we bear our acquaintance and relations, to observe some pretty curious phænomena, which attend it. 'Tis easy to remark in common life, that children esteem their relation to their mother to be weaken'd, in a great measure, by her second marriage, and no longer regard her with the same eye, as if she had continu'd in her state of widow-hood. Nor does this happen only, when they have felt any inconveniences from her second marriage, or when her husband is much her inferior; but even without any of these considerations, and merely because she has become part of another family. This also takes place with regard to the second marriage of a father; but in a much less degree: And 'tis certain the ties of blood are not so much loosen'd in the latter case as by the marriage of a mother. These two phænomena are remarkable in themselves, but much more so when compar'd.
In order to produce a perfect relation betwixt two objects, ’tis requisite, not only that the imagination be convey'd from one to the other by resemblance, contiguity or causation, but also that it return back from the second to the first with the same ease and facility. At first sight this may seem a necessary and unavoidable consequence. If one object resemble another, the latter object must necessarily resemble the former. If one object be the cause of another, the second object is effect to its cause. 'Tis the same case with contiguity: And therefore the relation being always reciprocal, it maybe thought, that the return of the imagination
