1.  Nowadays, some people hold the opinion that the ultimate goal of human evolution is to be robots, namely, human are doomed to be all Cyb and no org.

2.  Last but not least, innovation and human are closed linked.

3.  human are dissatisfied to just live in the earth, other planets and the giant space may have a large amount of resources, what's more, chances are that aliens exist in outer space.

4.  So, I believe animals think in a way that human are not clear.

5.  Above all, human are really significant of the world, and hope ourselves do this job better.

6.  Finally , human are in a dilemma , we have to waste productions .