end which these animals have before their eyes, which strive so ceaselessly—in short, we are driven to ask: What is the result? what is attained by the animal existence which demands such infinite preparation? And there is nothing to point to but the satisfaction of hunger and the sexual instinct, or in any case a little momentary comfort, as it falls to the lot of each animal individual, now and then in the intervals of its endless need and struggle. If we place the two together, the indescribable ingenuity of the preparations, the enormous abundance of the means, and the insufficiency of what is thereby aimed at and attained, the insight presses itself upon us that life is a business, the proceeds of which are very far from covering the cost of it. This becomes most evident in some animals of a specially simple manner of life. Take, for example, the mole, that unwearied worker. To dig with all its might with its enormous shovel claws is the occupation of its whole life; constant night surrounds it; its embryo eyes only make it avoid the light. It alone is truly an _animal nocturnum_; not cats, owls, and bats, who see by night. But what, now, does it attain by this life, full of trouble and devoid of pleasure? Food and the begetting of its kind; thus only the means of carrying on and beginning anew the same doleful course in new individuals. In such examples it becomes clear that there is no proportion between the cares and troubles of life and the results or gain of it. The consciousness of the world of perception gives a certain appearance of objective worth of existence to the life of those animals which can see, although in their case this consciousness is entirely subjective and limited to the influence of motives upon them. But the _blind_ mole, with its perfect organisation and ceaseless activity, limited to the alternation of insect larvæ and hunger, makes the disproportion of the means to the end apparent. In this respect the consideration of the animal world left to itself in lands uninhabited by men is also specially instructive. A beautiful picture of this, and of the suffering which nature prepares for herself without the interference of man, is given by Humboldt in his “_Ansichten der Natur_” (second edition, p. 30 _et seq._); nor does he neglect to cast a glance (p. 44) at the analogous suffering of the human race, always and everywhere at variance with itself. Yet in the simple and easily surveyed life of the brutes the emptiness and vanity of the struggle of the whole phenomenon is more easily grasped. The variety of the organisations, the ingenuity of the means, whereby each is adapted to its element and its prey contrasts here distinctly with the want of any lasting final aim; instead of which there presents itself only momentary comfort, fleeting pleasure conditioned by wants, much and long suffering, constant strife, _bellum omnium_, each one both a hunter and hunted,