human nature is what all human begins. it represents the universal level in one's mental software. It is inherited within our genes. the human ability to feel fear, anger, love, joy, sadness and shame; the need to associate with others and to play and exercise oneself; and the facility to observe the environment and to talk about it with other humans all belong to this level of mental programming. however, what one does with these feelings, how one expresses fear, joy, observations, and so on, is modified by culture.