I. Haeckel and His Opponents

[^4]: Those who would willingly cling in faith to the existence of purposes in Nature, are constantly emphasising the fact that Darwin's views do not by any means exclude the idea of purpose, but rather make full use thereof, inasmuch as they show how the linking of causes and effects of necessity by themselves lead to the arising of the purposeful. The important point, however, is not whether or no one admits the existence of purposeful formations in Nature, but whether one assumes or rejects the idea that the purpose, the goal, co-operates as a cause in the development of these formations. Anyone who makes this assumption defends teleology, or the doctrine of purpose. Whoever says, on the contrary, purpose is in no way whatever operative in the production of the organic world; living creatures come into existence according to necessary laws just as do inorganic phenomena, and purposefulness is only there because that which is not purposeful cannot maintain itself; it is not the cause of what happens, but its consequence: he makes confession of Darwinism. No heed is paid to this by anyone who asserts, like Otto Liebmann, “Charles Darwin is one of the greatest teleologists of the present day” ( Thoughts and Facts, pt. i, p. 113). No, he is the greatest anti-teleologist, because he would show to such minds as Liebmann, if they understood him, that the purposeful can be explained without assuming the action of operative purposes.