People are born, bring in two seeds of personality, good and evil. Through the process of the impact of nature, environment, education ideology, family ... two personality spheres will have incomplete destruction, rejection, or mixed in a certain percentage. The struggle between good and evil always exists in every human being. An honest man will also have a bad time gliding through his head.
Good and evil struggle to survive. People may initially be good, but not all life will be good ...