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 ButlerIn all common ordinary cases, we see intuitively at first view what is out duty, what is the honest part. This is the ground of the observation, that the first thought is often the best. In these cases, doubt and deliberation is itself dishonesty; as it was in Balaam upon the second message.
Joseph ButlerHappiness or satisfaction consists only in the enjoyment of those objects which are by nature suited to our several particular appetites, passions, and affections.
Joseph ButlerThe object of self-love is expressed in the term self; and every appetite of sense, and every particular affection of the heart, are equally interested or disinterested, because the objects of them all are equally self or somewhat else.
Joseph ButlerPeople habituate themselves to let things pass through their minds, as one may speak, rather than to think of them. Thus by use they become satisfied merely with seeing what is said, without going any further. Review and attention, and even forming a judgment, becomes fatigue; and to lay anything before them that requires it, is putting them quite out of their way.
Joseph Butler