The birds you saw to-day do not improve—or their improvement only tends to self-preservation; the first nest they make and the last are exactly the same; though in their flights they must see many others more beautiful if not more convenient, and, had they reason, they would probably shew something like individual taste in the form of their dwellings; but this is not the case. You saw the hen tear the down from her breast to make a nest for her eggs; you saw her beat the grain with her bill, and not swallow a bit, till the young were satisfied; and afterwards she covered them with her wings, and seemed perfectly happy, while she watched over her charge; if any one approached, she was ready to defend them, at the hazard of her life: yet, a fortnight hence, you will see the same hen drive the fledged chickens from the corn, and forget the fondness that seemed to be stronger than the first impulse of nature. Animals have not the affections which arise from reason, nor can they do good, or acquire virtue. Every affection, and impulse, which I have observed in them, are like our inferior emotions, which do not depend entirely on our will, but are involuntary; they seem to have been implanted to preserve the species, and make the individual grateful for actual kindness. If you caress and feed them, they will love you, as children do, without knowing why; but we neither see imagination nor wisdom in them; and, what principally exalts man, friendship and devotion, they seem incapable of forming the least idea of. Friendship is founded on knowledge and virtue, and these are human acquirements; and devotion is a preparation for eternity; because when we pray to God, we offer an affront to him, if we do not strive to imitate the perfections He displays every where for our imitation, that we may grow better and happier.