急求一篇关于American Culture的英语文章,最好在400个单词左右,非常感谢

American culture：美国主流文化的形成
The main content of American culture is the emphasize on individuals' value, the pursue of democracy and freedom, the promotion of deploitation(开拓, 经营) and competition and the need of realistic and practicality. Its core is individualism: self first, personal need first, pursue of individual benefit and enjoyment, emphasize on achieving individual value by self-strive and self-design. This type of intentionally build up of personality and pursue customized individualism has its pros and cons, it gives incentives to people and make them exert on their potential and wisdom and as a result accelerate the development of the entire race and nation; on the other hand it is difficult to keep good relationship among people if everyone is egocentric thus make the entire society lack of unity.
egocentric: .自我中心的, 利己主义的

American citizens emphasize on achievements and respect heroes. They have great sense in their hearts to praise success and