own body, so neither can the desire of the correspondent gratification subsist in that intense degree, which properly constitutes appetite, except when it tends to relieve that very same uneasiness by which it was excited, as in the case of hunger. There is in the first place the strong mechanical action of the nervous and muscular systems co-operating with the rational desire of my own belief, and forcing it its own way. Secondly, this state of uneasiness grows more and more violent, the longer the relief which it requires is withheld from it: hunger takes no denial, it hearkens to no compromise, is soothed, by no flattery, tired out by no delay. It grows more importunate every moment, its demands become larger the less they are attended to. The first impulse which the general love of personal ease receives from bodily pain will give it the advantage over my disposition to sympathise with others in the same situation with myself, and this difference will be increasing every moment, till the pain is removed. Thus, if I at first, either through compassion or by an effort of the will, am regardless of my own wants, and wholly bent upon satisfying the more pressing wants of my companions, yet this effort will at length become too great, and I shall be incapable of attending to any thing but the violence of my own sensations, or the means of alleviating them. It would be easy to show from many things that mere appetite (generally, at least, in reasonable beings) is but the fragment of a selfmoving machine, but a sort of half organ, a subordinate instrument even in the accomplishment of its own purposes; that it does little or nothing without the aid of another faculty to inform and direct it. Before the impulses of appetite can be converted into the regular pursuit of a given object, they must first be communicated to the understanding, and modify the will through that. Consequently, as the desire of the ultimate gratification of the appetite is not the same with the appetite itself, that is mere physical uneasiness, but an indirect result of its communication to the thinking or imaginative principle, the influence of appetite over the will must depend on the extraordinary degree of force and vividness which it gives to the idea of a particular object; and we accordingly find that the same cause which irritates the desire of selfish gratification, increases our sensibility to the same desires and gratification in others, where they are consistent with our own, and where the violence of the physical impulse does not overpower every other consideration. |