A naturalist not ashamed to indulge his poetic imagination might easily paint for us the drama of these diverse loves. It suffices for our purpose to observe that the varying passions and duties which life can contain depend upon the organic functions of the animal. A fish incapable of coition, absolved from all care for its young, which it never sees or never distinguishes from the casual swimmers darting across its path, such a fish, being without social faculties or calls to co-operation, cannot have the instincts, perceptions, or emotions which belong to social beings. A male of some higher species that feels only once a year the sudden solicitations of love cannot be sentimental in all the four seasons: his head-long passion, exhausted upon its present object and dismissed at once without remainder, leaves his senses perfectly free and colourless to scrutinise his residual world. Whatever further fears or desires may haunt him will have nothing mystical or sentimental about them. He will be a man of business all the year round, and a lover only on May-day. A female that does not suffice for the rearing of her young will expect and normally receive her mate’s aid long after the pleasures of love are forgotten by him. Disinterested fidelity on his part will then be her right and his duty. But a female that, once pregnant, needs, like the hen, no further co-operation on the male’s part will turn from him at once with absolute indifference to brood perpetually on her eggs, undisturbed by the least sense of solitude or jealousy. And the chicks that at first follow her and find shelter under her wings will soon be forgotten also and relegated to the mechanical landscape. There is no pain in the timely snapping of the dearest bonds where society has not become a permanent organism, and perpetual friendship is not one of its possible modes. Transcendent and ideal passions may well judge themselves to have an incomparable dignity. Yet that dignity is hardly more than what every passion, were it articulate, would assign to itself and to its objects. The dumbness of a passion may accordingly, from one point of view, be called the index of its baseness; for if it cannot ally itself with ideas its affinities can hardly lie in the rational mind nor its advocates be among the poets. But if we listen to the master-passion itself rather than to the loquacious arts it may have enlisted in its service, we shall understand that it is not self-condemned because it is silent, nor an anomaly in nature because inharmonious with human life. The fish’s heartlessness is his virtue; the male bee’s lasciviousness is his vocation; and if these functions were retrenched or encumbered in order to assimilate them to human excellence they would be merely dislocated. We should not produce virtue where there was vice, but defeat a possible arrangement which would have had its own vitality and order. [Sidenote: Glory of animal love.]