This is the general standpoint of the philosophy of Anaxagoras, and quite the same standpoint which in more recent times reigns in chemistry for instance; flesh is certainly no longer regarded as simple, but as being hydrogen, &c. The chemical elements are oxygen, hydrogen, carbon and metals, &c. Chemistry says, if you want to know what flesh, wood, stone, &c., really are, you must set forth their simple elements, and these are ultimate. It also says that much is only relatively simple, _e.g._ platinum consists of three or four metals. Water and air were similarly long held to be simple, but chemistry at length analyzed them. From this chemical point of view, the simple principles of natural things are determined as infinitely qualitative and thus accepted as unchangeable and invariable, so that all else consists only of the combination of these simples. Man, according to this, is a collection of carbon and hydrogen, some earth, oxides, phosphorus, &c. It is a favourite idea of the physicists to place in the water or in the air, oxygen and carbon, which exist and only require to be separated. This idea of Anaxagoras certainly also differs from modern chemistry; that which we consider as concrete, is for him qualitatively determined or elementary. Yet he allows, with regard to flesh, that the parts are not all alike. “For this reason, they say,” remarks Aristotle (Phys. I. 4; Met. IV. 5),—but not particularly of Anaxagoras—“everything is contained in everything, for they saw everything arise out of everything: it only appears to be different and is called different in accordance with the predominating number of the particular kind of parts which have mingled themselves with others. In truth the whole is not white, or black, or sweet, or flesh, or bones; but the homœomeriæ which have most accumulated in any place, bring about the result that the whole appears to us as this determinate.” As thus each thing contains all other things, water, air, bones, fruits, &c., on the other hand, the water contains flesh as flesh, bones, &c. Into this infinitely manifold nature of the principles, Anaxagoras thus goes back; the sensuous has first arisen through the accumulation of all those parts, and in it the one kind of parts then has a predominance.