Now, in order to know what passions are related to these different kinds of sympathy, we must consider that benevolence is an original pleasure arising from the pleasure of the person beloved, and a pain proceeding from his pain: from which correspondence of impressions there arises a subsequent desire of his pleasure, and aversion to his pain. In order, then, to make a passion run parallel with benevolence, 'tis requisite we should feel these double impressions, correspondent to those of the person whom we consider; nor is any one of them alone sufficient for that purpose. When we sympathize only with one impression, and that a painful one, this sympathy is related to anger and to hatred, upon account of the uneasiness it conveys to us. But as the extensive or limited sympathy depends upon the force of the first sympathy, it follows that the passion of love or hatred depends upon the same principle. A strong impression, when communicated, gives a double tendency of the passions, which is related to benevolence and love by a similarity of direction, however painful the first impression might have been. A weak impression that is painful is related to anger and hatred by the resemblance of sensations. Benevolence, therefore, arises from a great degree of misery, or any degree strongly sympathized with: hatred or contempt from a small degree, or one weakly sympathized with; which is the principle I intended to prove and explain. Nor have we only our reason to trust to for this principle, but also experience. A certain degree of poverty produces contempt; but a degree beyond causes compassion and good will. We may undervalue a peasant or servant; but when the misery of a beggar appears very great, or is painted in very lively colours, we sympathize with him in his afflictions, and feel in our heart evident touches of pity and benevolence. The same object causes contrary passions, according to its different degrees. The passions, therefore, must depend upon principles that operate in such certain degrees, according to my hypothesis. The increase of the sympathy has evidently the same effect as the increase of the misery. A barren or desolate country always seems ugly and disagreeable, and commonly inspires us with contempt for the inhabitants. This deformity, however, proceeds in a great measure from a sympathy with the inhabitants, as has been already observed; but it is only a weak one, and reaches no farther than the immediate sensation, which is disagreeable. The view of a city in ashes conveys benevolent sentiments; because we there enter so deep into the interests of the miserable inhabitants, as to wish for their prosperity, as well as feel their adversity.