no reason to believe that other creatures have higher faculties, or more extensive capacities, than the preservation of themselves, or their species, requires; they seem always to be fully employed, or to be completely at ease without employment, to feel few intellectual miseries or pleasures, and to have no exuberance of understanding to lay out upon curiosity or caprice, but to have their minds exactly adapted to their bodies, with few other ideas than such as corporal pain or pleasure impresses upon them.
Of memory, which makes so large a part of the excellence of the human soul, and which has so much influence upon all its other powers, but a small portion has been allotted to the animal world. We do not find the grief, with which the dams lament the loss of their young, proportionate to the tenderness with which they caress, the assiduity with which they feed, or the vehemence with which they defend them. Their regard for their offspring, when it is before their eyes, is not, in appearance, less than that of a human parent; but when it is taken away, it is very soon forgotten, and, after a short absence, if brought again, wholly disregarded.
That they have very little remembrance of any thing once out of the reach of their senses, and scarce any power of comparing the present with the past, and regulating their conclusions from experience, may be gathered from this, that their intellects are produced in their full perfection. The sparrow that was hatched last spring makes her first nest the ensuing season, of the same materials, and with the same art, as in any following year; and the hen conducts and shelters her
