with them, or a habit of being stupidly engrossed by our own interests. Whether there may not be some higher principle of our general nature by which our sentiments and actions with respect to others should be voluntarily regulated, according to the same rule by which gross animal appetite is subjected to rational self-interest, may be made the subject of a future inquiry. All that is necessary to my present purpose is to have made it appear that the principles of natural self-love and natural benevolence, of refined self-love and refined benevolence are the same; that if we admit the one, we must admit the other; and that whatever other principles may be combined with them, they must stand, or fall together.
It is not therefore my intention to puzzle myself or my readers with the intricacies of a debtor and creditor account between nature and habit. Whatever the force of habit may be, however subtle and universal it's influence, it is not every thing, not even the principal thing. Before we plant, it is proper to know the nature of the soil, first that we may know whether it is good for any thing, secondly that we may know what it is good for. On these two questions will depend the sort of cultivation we bestow upon it. After this is settled, it is idle to dispute how much of the produce is owing to cultivation, and how much to the nature of the soil. We should only be sure of having made the best use of it we can. But we cannot be sure of this till we know what it is naturally capable of. I will however lay down two general maxims on this subject which will not admit of much controversy. First, when there is no natural connection between any two things which yet have been supposed inseparable from a confused association of ideas, it is possible to destroy this illusion of the imagination by rational distinction, and consequently to weaken
