The Good and Evil

After reading about the article on, " The Philosophy of Good and Evil in Humanity ", I've learned that evil itself is an existing entity, a force that cannot be removed from society entirely. Good is as well, an existing entity much like it's counterpart, evil, which both compliment each other in the nature of society and humanity. These two premature forces have always existed over the course of time and have remained alongside humans, due to their actions and deeds committed in society.  Rules created by society reflect on these aspects of good and evil, determining whether the action a person did corresponded with the respective force.  Free will of people also plays an important part in good and evil, with the rules created by society in further assisting the judgment and identification of the said person committing the act. Without these rules/laws, the shift in the two existing forces would constantly change, depending entirely on the person and deed.
In my own personal opinion, I whole heartily agree with the concept of good and evil existing in our society, in humanity as a whole. Further in the article, the author explains the necessity for evil, how it affects us and how it reveals the attributes of good from within. " ... and without the presence of evil in society, the good would never be seen. " Good deeds wouldn't be recognized without an evil force leading up to the achievement of those deeds. Basically, good can't exist without evil and evil can't exist without good, there always has to be a  balance between the two, otherwise they cease to exist.