As human nature is not one simple uniform thing, but a composition of various parts, body, spirit, appetites, particular passions, and affections; for each of which reasonable self-love would lead men to have due regard, and make suitable provision: so society consists of various parts, to which we stand in different respects and relations; and just benevolence would as surely lead us to have due regard to each of these, and behave as the respective relations require. Reasonable good will, and right behaviour towards our fellow creatures, are in a manner the same: only that the former expresseth the principle as it is in the mind; the latter, the principle as it were, become external, i. e. exerted in actions.
And so far as temperance, sobriety, and moderation in sensual pleasures, and the contrary vices, have any respect to our fellow creatures, any influences upon their quiet, welfare, and happiness; as they always have a real, and often a near, influence upon it; so far it is manifest those virtues may be produced by the love of our neighbor, and that the contrary vices would be prevented by it. Indeed, if men's regard to themselves will not restrain them from excess, it may be thought little probable, that their love to others will he sufficient: but the reason is, that their love to other's is not, any more than their regard to themselves, just, and in its due degree. There are, however, manifest instances of persons kept sober and temperate from regard to their affairs, and the welfare of those who depend upon them. And it is obvious to every one, that habitual excess, a dissolute course of life, implies a general neglect of the duties we owe towards our friends, our families, and our country.
Joseph Butler, Fifteen Sermons Preached at the Rolls Chapel, Sermon XIII, "Upon the Love of Our Neighbour".
