Although the declaration of independence said everyone has equal right to pursuit one’s happiness, but many people often feel unhappy,the reason are as follows:
    Firstly, there’re so many unfairnesses, pressure and displeasure in our daily life. The reality must push us to do things go against our desire.Most times we base our happiness on money and material.
    Besides, for some people,the expection of happiness is too high to realize,at least in short time,if they refuse to adjust there life goal,they may feel blue all the time.
    At last, if we all have a good mentality, nomatter what we do and where we are ,we will enjoy the course of the pursuit of happiness, and success someday.I'm sure that you can get it。