Translations:Benutzer:Arian/Klett-Mini-Test/1601/en

In deep concealment there are to be found, even within the process of growth, just as many localised zones of devitalisation as the plant has cells. These are the phosphorus-containing cell nuclei. They harbour, in the form of the nuclear protein — the nucleotides — the chromosomes, the mediators of the stream of heredity from generation to generation. The nucleus, enclosed by the nuclear membrane, represents in its relation to the cell plasma the pole of rest of the cell. Within it, on the basis of phosphorus, a higher principle holds sway than that which in plant, animal and human being assists toward the shaping of their respective outward appearance. It is the principle that, in enduring germinal quality, carries all the achievements of development from the past into the present and from the present on into the future. It is superordinate to this course of development; it is the spirit being of the plant itself, raying in from a higher supersensible region — that which in human consciousness lights up as the I-being. Thus *myelin* — these are phospholipids that ensheath the nerve fibres in the brain — stands in closest connection with