I. Haeckel and His Opponents
That the revolution in scientific views brought about by Darwinism must take place, Goethe knew full well, for it corresponds with his own way of conceiving things. In the view which Geoffroy de Saint-Hilaire defended against Cuvier, that all organic forms carry in them a “general plan modified only here and there,” he recognised his own again. Therefore he could say to Soret: “Now, however, Geoffroy de Saint-Hilaire is decidedly on our side, and with him all his important disciples and followers in France. This event is for me of quite extraordinary value, and I rejoice rightly over the general victory gained at length by a cause to which I have devoted my life, and which is most especially my very own.” Of still greater value for Goethe's view of Nature are, however, the discoveries of Darwin. Goethe's view of Nature is related to Darwinism in a way similar to that in which the insights of Copernicus and Kepler into the structure and movements of the planetary system are related to the discovery by Newton of the law of the universal attraction of all heavenly bodies. This law reveals the scientific causes, why the planets move in the manner which Copernicus and Kepler had described. And Darwin found the natural causes, why the common original type of all organic beings, which Goethe assumed, makes its appearance in the various species.