From the consideration of these causes, it appears necessary we shoud make a new distinction in the causes of the passion, betwixt that QUALITY, which operates, and the subject, on which it is placed. A man, for instance, is vain of a beautiful house, which belongs to him, or which he has himself built and contrived. Here the object of the passion is himself, and the cause is the beautiful house: Which cause again is sub-divided into two parts, viz. the quality, which operates upon the passion, and the subject in which the quality inheres. The quality is the beauty, and the subject is the house, considered as his property or contrivance. Both these parts are essential, nor is the distinction vain and chimerical. Beauty, considered merely as such, unless placed upon something related to us, never produces any pride or vanity; and the strongest relation alone, without beauty, or something else in its place, has as little influence on that passion. Since, therefore, these two particulars are easily separated and there is a necessity for their conjunction, in order to produce the passion, we ought to consider them as component parts of the cause; and infix in our minds an exact idea of this distinction. SECT. III WHENCE THESE OBJECTS AND CAUSES ARE DERIVED Being so far advanced as to observe a difference betwixt the object of the passions and their cause, and to distinguish in the cause the quality, which operates on the passions, from the subject, in which it inheres; we now proceed to examine what determines each of them to be what it is, and assigns such a particular object, and quality, and subject to these affections. By this means we shall fully understand the origin of pride and humility. It is evident in the first place, that these passions are determined to have self for their object, not only by a natural but also by an original property. No one can doubt but this property is natural from the constancy and steadiness of its operations. It is always self, which is the object of pride and humility; and whenever the passions look beyond, it is still with a view to ourselves, nor can any person or object otherwise have any influence upon us.