I. Haeckel and His Opponents

Goette's law of form, Weismann's inner causes of development, Reinke's dominants are fundamentally just nothing else but derivatives of the thoughts of the world-creator who builds according to plan. As soon as one forsakes the clear and simple mode of explanation of the monistic world-conception, one inevitably falls a victim to mystical-religious conceptions, and of such Haeckel's saying holds good, that “then it is better to assume the mysterious creation of the individual species” ( Uber unsere gegenwärtige Kenntniss vom Ursprung des Menschen, p. 30).