Then, where in the world is the difference? My answer is we are different from animals in our ability to reshape ourselves. Some animals are very good at reshaping themselves, such as amebas. Or change part of their body according the changes of the environment, like chameleons. However, when compared with human being, they are nothing more than small tricks. When we find the world not comfortable to live in, we just make some changes, not to our bodies, but to the way we interact with the environment. When we come across a river, we build boats or bridges, instead of develop fins and webs. When we want to get rid of gravity, we resort to planes instead of wings. But, what is most important of all is our ability to build a structure called society. Often we call ourselves social animals. But our society is different from the society of other animals like ants and termites. The way their society is organized is through instinct and whose structure cannot be changed according to the environment. In the society of ants, there is the queen, the worker ants and the fighter ants. There roles are decided from the moment from their birth. Each of these three kinds of ants develops respective organs for their specific functions in the society. But for we human beings, the case is totally different. Biologically speaking, every individual in the society is identical. What differ one social member from another is the role he is playing in the system. Every individual can play many different roles through his lifespan. No one is born an engineer or a politician. Even if he is born a king, it does not necessarily mean he will remain on his throne all his life. A beggar could one day become the king. As a result, the social structure can easily reshape itself if necessary. In this structure, what matter are not the members of it but the way they interact with each other. The next chapter will show how human social structures emerged and evolved in history. It will also give you a glimpse of how the two greatest treasures of mankind, namely religion and philosophy, come to surface.