Competition: This is something that is considered by many to be a part of human nature. Competition is the reason many people, civilizations, activities, and other creations exist from a scale of life, or something such as entertainment. On some level, competition has been a plague to humanity as it has lead to a group of people being conquered. Also it causes people to loose individuality since many "compete" for social status or meaningless prestige by them forgetting reason or forgetting themselves all together. Although negative comes out of it, there is always a negative side to everything just as there is a positive. With competition also comes goals and the pursuit of happiness or victory. There's obviously nothing wrong with desiring greatness or achievements in life. To not desire this would seem to make part of living not worth living. To not pursue something in life would be wasteful.
