It is characterized by a _subjective_ end, the _feeling_ of happiness; but we have other ends of the objective kind, the ends of our appetites, passions, and affections--food, injury to another, good to another, &c.

The total happiness of our being includes all our ends.

Self-love attends only to one interest, and if we are too engrossed with that, we may sacrifice other interests, and narrow the sphere of our happiness.

A certain disengagement of mind is necessary to enjoyment, and the intensity of pursuit interferes with this.

[This is a true remark, but misapplied; external pursuit may be so intense as nearly to do away with subjective consciousness, and therefore with pleasure; but this applies more to _objective_ ends,--wealth, the interest of others--than to self-love, which is in its nature subjective.] Now, what applies to the Appetites and Affections applies to Benevolence; it is a distinct motive or urgency, and should have its scope like every other propensity, in order to happiness.
Such is his reasoning, grounded on his peculiar Psychology.