if without the facts mentioned above will find that Living among the solitude is troublesome. So the answer to this problem is that we have to live together as a group. The main reason that humans must live together as social, it's so. 1. Safety 2.To have the power 3. In order to achieve the goal. 4. To Fame 5. The importance. Therefore, to make these things happen, it's necessary to have a society of shared norms, which is called the NORM.