_Second experiment_. Since an object that wants both these relations can ever produce any passion, let us bestow on it only one of these relations, and see what will follow. Thus, suppose I regard a stone, or any common object that belongs either to me or my companion, and by that means acquires a relation of ideas to the object of the passions: 'tis plain that, to consider the matter _a priori_, no emotion of any kind can reasonably be expected. For, besides that a relation of ideas operates secretly and calmly on the mind, it bestows an equal impulse towards the opposite passions of pride and humility, love and hatred, according as the object belongs to ourselves or others; which opposition of the passions must destroy both, and leave the mind perfectly free from any affection or emotion. This reasoning _a priori_ is confirmed by experience. No trivial or vulgar object, that causes not a pain or pleasure independent of the passion, will ever, by its property or other relations, either to ourselves or others, be able to produce the affections of pride or humility, love or hatred. _Third experiment_. 'Tis evident, therefore, that a relation of ideas is not able alone to give rise to these affections. Let us now remove this relation, and, in its stead, place a relation of impressions, by presenting an object, which is agreeable or disagreeable, but has no relation either to ourself or companion; and let us observe the consequences. To consider the matter first _a priori_, as in the preceding experiment, we may conclude that the object will have a small, but an uncertain connexion with these passions. For, besides that this relation is not a cold and imperceptible one, it has not the inconvenience of the relation of ideas, nor directs us with equal force to two contrary passions, which, by their opposition, destroy each other. But if we consider, on the other hand, that this transition from the sensation to the affection is not forwarded by any principle that produces a transition of ideas; but, on the contrary, that though the one impression be easily transfused into the other, yet the change of objects is supposed contrary to all the principles that cause a transition of that kind; we may from thence infer, that nothing will ever be a steady or durable cause of any passion that is connected with the passion merely by a relation of impressions. What our reason would conclude from analogy, after balancing these arguments, would be, that an object, which produces pleasure or uneasiness, but has no manner of connexion either with ourselves or others, may give such a turn to the disposition as that it may naturally fall into pride or love, humility or hatred, and search for other objects, upon which, by a double relation, it can found these affections; but that an object, which has only one of these relations, though the most advantageous one, can never give rise to any constant and established passion.