Now if we thus grasp the principles of the Concrete and of Development, the nature of the manifold obtains quite another signification, and what is said of the diversity in philosophies as if the manifold were fixed and stationary and composed of what is mutually exclusive, is at once refuted and relegated to its proper place. Such talk is that in which those who despise Philosophy think they possess an invincible weapon against it, and in their truly beggarly pride in their pitiful representations of it, they are in perfect ignorance even of what they have and what they have to know in any meagre ideas attained, such as in that of the manifold and diverse. Yet this category is one which anybody can understand; no difficulty is made in regard to it, for it is thoroughly known, and those who use it think they can do so as being entirely comprehensible—as a matter of course they understand what it is. But those who believe the principle of diversity to be one absolutely fixed, do not know its nature, or its dialectic; the manifold or diverse is in a state of flux; it must really be conceived of as in the process of development, and as but a passing moment. Philosophy in its concrete Idea is the activity of development in revealing the differences which it contains within itself; these differences are thoughts, for we are now speaking of development in Thought. In the first place, the differences which rest in the Idea are manifested as thoughts. Secondly, these distinctions must come into existence, one here and the other there; and in order that they may do this, they must be complete, that is, they must contain within themselves the Idea in its totality. The concrete alone as including and supporting the distinctions, is the actual; it is thus, and thus alone, that the differences are in their form entire.