Teenagers, the future of a country, play an essential role in our society because of some reasons. First, thanks to the development of society, the young class has a chance to raise their voice and express their opinions. They will not depend on the adults when getting into troubles. They can solve the problem themselves. Morevoer, they also creative when they can invent many techonology products that make our life easier. Therefore, the roles of teenagers is very important. The prosperity of a country in the future depends on the teenager generation. Teenagers should have an ideal of true living to help them orient for the future.