The existence of plant and animal world in general impulse to the senior development, although this development path, as a fact is beyond question. However, on the one hand, that a stage advanced than the other stages of our evaluation is, on the other hand, biology clearly shows that in a particular aspect of the development to the senior frequently
Accompanied by (or with equilibrium is) On the other hand the degradation of … …
 
Many of us have found it difficult to give up this belief, that man has a kind of tend to improve their own impulses, which people have the skills and wisdom present Gaoduo ethical sublimation, and can thus expect, people certainly can develop Superman. But
I do not believe that the existence of such an internal impulse, I do not see how we can maintain this pleasant illusion. In my opinion, people have developed to not need any explanation of the development of different animals. In a small number of people who observed the continuous efforts of trying to further improve, it is easily explained