Pain and sorrow and misery have a right to our assistance: compassion puts us in mind of the debt, and that we owe it to ourselves as well as to the distressed.
Consequently it will often happen there will be a desire of particular objects, in cases where they cannot be obtained without manifest injury to others.
Both our senses and our passions are a supply to the imperfection of our nature; thus they show that we are such sort of creatures as to stand in need of those helps which higher orders of creatures do not.
As this world was not intended to be a state of any great satisfaction or high enjoyment, so neither was it intended to be a mere scene of unhappiness and sorrow.
Every man is to be considered in two capacities, the private and public; as designed to pursue his own interest, and likewise to contribute to the good of others.
Every one of our passions and affections hath its natural stint and bound, which may easily be exceeded; whereas our enjoyments can possibly be but in a determinate measure and degree.
Man may act according to that principle or inclination which for the present happens to be strongest, and yet act in a way disproportionate to, and violate his real proper nature.
Love of our neighbour, then, has just the same respect to, is no more distant from, self-love, than hatred of our neighbour, or than love or hatred of anything else.
However, without considering this connection, there is no doubt but that more good than evil, more delight than sorrow, arises from compassion itself; there being so many things which balance the sorrow of it.
Happiness or satisfaction consists only in the enjoyment of those objects which are by nature suited to our several particular appetites, passions, and affections.
Self-love then does not constitute THIS or THAT to be our interest or good; but, our interest or good being constituted by nature and supposed, self-love only puts us upon obtaining and securing it.