There is a tribe of Æthiopian Nomades dwelling on the banks of the river Astragus, towards the north, and about twenty days’ journey from the ocean. These people are called Menismini; they live on the milk of the animal which we call cynocephalus,[68] and rear large flocks of these creatures. In the deserts of Africa, men are frequently seen to all appearance, and then vanish in an instant. Nature, in her ingenuity, has created all these marvels in the human race, with others of a similar nature, as so many amusements to herself, though they appear miraculous to us. But who is there that can enumerate all the things that she brings to pass each day, I may almost say each hour? As a striking evidence of her power, let it be sufficient for me to have cited whole nations in the list of her prodigies. Let us now proceed to mention some other particulars connected with Man, the truth of which is universally admitted. It is a subject for pity, and even for a feeling of shame, when one reflects that the origin and life of the most vain of all animated beings is so frail: Thou man, who placest thy confidence in the strength of thy body, thou, who dost embrace the gifts of Fortune, and look upon thyself, not only as her fosterling, but even as her own born child, thou, whose mind is ever thirsting for blood, thou who, puffed up with some success or other, dost think thyself a god—by how trifling a thing might thy life have been cut short! Even this very day, something still less even may have the same effect, the puncture, for instance, of the tiny sting of the serpent; or even, as befell the poet Anacreon, the swallowing of the stone of a raisin, or of a single hair in a draught of milk, by which the prætor and senator, Fabius, was choked, and so met his death. He only, in fact, will be able to form a just estimate of the value of life, who will always bear in mind the extreme frailty of its tenure. CHAPTER III. INSTANCES OF EXTRAORDINARY STRENGTH.