The only distinct meaning of the word "natural" is stated, fixed, or settled; since what is natural as much requires and presupposes an intelligent agent to render it so, i.e. to effect it continually or at stated times, as what is supernatural or miraculous does to effect it for once.
Joseph ButlerAs 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.
Joseph ButlerEvery man hath a general desire of his own happiness; and likewise a variety of particular affections, passions, and appetites to particular external objects.
Joseph ButlerSelf-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.
Joseph Butler