T 3.1.1.22

But it will be still more difficult to fulfil the second condition, requisite to justify this system. According to the principles of those who maintain an abstract rational difference betwixt moral good and evil, and a natural fitness and unfitness of things, 'tis not only suppos'd, that these relations, being eternal and immutable, are the same, when consider'd by every rational creature, but their effects are also suppos'd to be necessarily the same; and 'tis concluded they have no less, or rather a greater, influence in directing the will of the deity, than in governing the rational and virtuous of our own species. These two particulars are evidently distinct. 'Tis one thing to know virtue, and another to conform the will to it. In order, therefore, to prove, that the measures of right and wrong are eternal laws, obligatory on every rational mind, 'tis not sufficient to shew the relations upon which they are founded: We must also point out the connexion betwixt the relation and the will; and must prove that this connexion is so necessary, that in every well-disposed mind, it must take place and have its influence; tho' the difference betwixt these minds be in other respects immense and infinite. Now |besides what I have already prov'd, that even in human nature no relation can ever alone produce any action; besides this, I say, it has been shewn, in treating of the understanding, that there is no connexion of cause and effect, such as this is suppos'd to be, which is discoverable otherwise than by experience, and of which we can pretend to have any security by the simple consideration of the objects. All beings in the universe, consider'd in themselves, appear entirely loose and independent of each other. 'Tis only by experience we learn their influence and connexion; and this influence we ought never to extend beyond experience.