3. _The Relation of the Two._ Now as to the relation of the _νοῦς_ to that matter, both are not speculatively posited as one, for the relation itself is not set forth as one, nor has the Notion penetrated it. Here the ideas become in some measure superficial, and in some measure the conceptions are more consistent as regards the particular, than they at first appear. Because the understanding is the self-determining, the content is end, it retains itself in relation to what is different; it does not arise and pass away although it is in activity. The conception of Anaxagoras that concrete principles subsist and retain themselves, is thus consistent; he abolishes arising and passing away and accepts only an external change, a uniting together, and a severance of what is so united. The principles are concrete and have content, _i.e._ so many ends; in the change that takes place the principles really retain themselves. Like only goes with like even if the chaotic mixture is a combination of the unlike; but this is only a combination and not an individual, living form which maintains itself, binding like to like. Thus, however rude these ideas are, they are still really in harmony with the _νοῦς_. But if the _νοῦς_ is with Anaxagoras the moving soul in all, it yet remains to the real, as the soul of the world and the organic system of the whole, a mere word. For the living as living, since the soul was conceived of as principle, the ancients demanded no further principle (for it is the self-moving), but for determinateness, which the animal is as element in the system of the whole, they again required only the universal of these determinations. Anaxagoras calls the understanding such a principle, and in fact the absolute Notion, as simple existence, the self-identical in its differences, the dividing, the reality-establishing, must be known as such. But that Anaxagoras showed forth the understanding in the universe, or had grasped it as a rational system—of this not only do we not find a trace, but the ancients expressly say that he simply let the matter pass, just as when we say that the world or nature is a great system, the world is wisely ordered or is generally speaking rational. By this we are shown no more of the realization of this reason or the comprehensibility of the world. The _νοῦς_ of Anaxagoras is thus still formal, although the identity of the principle with the realization was recognized. Aristotle (Met. I. 4) recognizes the insufficiency of the Anaxagorean principle: “Anaxagoras, indeed, requires the _νοῦς_ for his formation of the world-system; that is, when he has a difficulty in showing the reason for which it is in accordance with necessity, he brings it in; otherwise he employs anything for the sake of explanation, rather than thought.”