Help achieve knowledge and understanding about the nature of human beings, for example, know what are the basic needs of human beings. How was human when they are unable to meet their own needs.
Contribute to the knowledge The understanding of human nature, like to know what are the basic needs of human beings. How do men feel when unable to meet their own needs. And what was the impetus for the different behavior.
The knowledge and understanding of human nature, such as what is the basic requirement of human beings. The human sense of how when cannot meet their needs.