This is the reasoning I form in conformity to my hypothesis; and am pleased to find, upon trial, that every thing answers exactly to my expectation. The virtue or vice of a son or brother not only excites love or hatred, but, by a new transition from similar causes, gives rise to pride or humility. Nothing causes greater vanity than any shining quality in our relations; as nothing mortifies us more than their vice or infamy. This exact conformity of experience to our reasoning is a convincing proof of the solidity of that hypothesis upon which we reason. _Sixth experiment_. This evidence will be still augmented if we reverse the experiment, and, preserving still the same relations, begin only with a different passion. Suppose that, instead of the virtue or vice of a son or brother, which causes first love or hatred, and afterwards pride or humility, we place these good or bad qualities on ourselves, without any immediate connexion with the person who is related to us, experience shows us, that, by this change of situation, the whole chain is broke, and that the mind is not conveyed from one passion to another, as in the preceding instance. We never love or hate a son or brother for the virtue or vice we discern in ourselves; though 'tis evident the same qualities in him give us a very sensible pride or humility. The transition from pride or humility to love or hatred, is not so natural as from love or hatred to pride or humility. This may at first sight be esteemed contrary to my hypothesis, since the relations of impressions and ideas are in both cases precisely the same. Pride and humility are impressions related to love and hatred. Myself am related to the person. It should therefore be expected, that like causes must produce like effects, and a perfect transition arise from the double relation, as in all other cases. This difficulty we may easily solve by the following reflections. 'Tis evident that, as we are at all times intimately conscious of ourselves, our sentiments and passions, their ideas must strike upon us with greater vivacity than the ideas of the sentiments and passions of any other person. But every thing that strikes upon us with vivacity, and appears in a full and strong light, forces itself, in a manner, into our consideration, and becomes present to the mind on the smallest hint and most trivial relation. For the same reason, when it is once present, it engages the attention, and keeps it from wandering to other objects, however strong may be their relation to our first object. The imagination passes easily from obscure to lively ideas, but with difficulty from lively to obscure. In the one case the relation is aided by another principle; in the other case, 'tis opposed by it.