and from like causes. The ease and satisfaction, which, in both cases, attend our intercourse or commerce, is the source of the friendship.
3. The passions of love and hatred are always followed by, or rather conjoined with, benevolence and anger. It is this conjunction, which chiefly distinguishes these affections from pride and humility. For pride and humility are pure emotions in the soul, unattended with any desire, and not immediately exciting us to action. But love and hatred are not compleat within themselves, nor rest in that emotion, which they produce; but carry the mind to something farther. Love is always followed by a desire of happiness to the person beloved, and an aversion to his misery: As hatred produces a desire of the misery, and an aversion to the happiness of the person hated. These opposite desires seem to be originally and primarily conjoined with the passions of love and hatred. It is a constitution of nature, of which we can give no farther explication.
4. Com-
