Transition into something else is the dialectical process within the range of Being: reflection (bringing something else into light), in the range of Essence. The movement of the Notion is _development_: by which that only is explicit which is already implicitly present. In the world of nature it is organic life that corresponds to the grade of the notion. Thus _e.g._ the plant is developed from its germ. The germ virtually involves the whole plant, but does so only ideally or in thought: and it would therefore be a mistake to regard the development of the root, stem, leaves, and other different parts of the plant, as meaning that they were _realiter_ present, but in a very minute form, in the germ. That is the so-called 'box-within-box' hypothesis; a theory which commits the mistake of supposing an actual existence of what is at first found only as a postulate of the completed thought. The truth of the hypothesis on the other hand lies in its perceiving that in the process of development the notion keeps to itself and only gives rise to alteration of form, without making any addition in point of content. It is this nature of the notion--this manifestation of itself in its process as a development of its own self,--which is chiefly in view with those who speak of innate ideas, or who, like Plato, describe all learning merely as reminiscence. Of course that again does not mean that everything which is embodied in a mind, after that mind has been formed by instruction, had been present in that mind beforehand, in its definitely expanded shape. The movement of the notion is as it were to be looked upon merely as play: the other which it sets up is in reality not an other. Or, as it is expressed in the teaching of Christianity: not merely has God created a world which confronts Him as an other; He has also from all eternity begotten a Son in whom He, a Spirit, is at home with Himself. 162.] The doctrine of the notion is divided into three parts. (1) The first is the doctrine of the Subjective or Formal Notion. (2) The second is the doctrine of the notion invested with the character of immediacy, or of Objectivity. (3) The third is the doctrine of the Idea, the subject-object, the unity of notion and objectivity, the absolute truth.