People Are Never Satisfied
No matter how much we have， it seems that there is always something more to strive for. It is a rare person who is truly content with his life just as it is. However， I believe that a certain amount of dissatisfaction is a natural part of human nature and is actually beneficial to mankind. After all， it is dissatisfaction with the way things are that pushes us to improve. In my opinion， people will always want something more or something different than what they have. Take Edison for example. He was not satisfied with the knowledge he gained from the books and teachers of his time. He still had many questions to which he could not find satisfactory answers. This dissatisfaction led him to make many important discoveries and they， in turn， contributed greatly to the advancement of mankind. There are many other examples like Edison throughout history. In addition， people are competitive. They like to keep up with others， so when one person acquires something desirable， those who know him will want to do the same. Furthermore， people like to express themselves and differentiate themselves from others. This leads people to strike out on their own in some way and do or invent something new， which in turn leads to a new fad for the others to follow. For all of the above reasons， I believe that people will never be truly satisfied with what they have. They will always be striving for something new or better， and it is this process that leads to progress. In the end， some dissatisfaction can be good for us.
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人是永远不会满足的
不论我们已经拥有了多少，我们似乎总是努力想追求的东西。很少有人会真的对其生活现状感到满意。然而，我认为某种程度的不满足是人之常情，而且实际上对人们有益。毕竟，对事物现状的不满是驱使人类进步的原动力。依我之见，人们总是想要拥有，或想拥有不一样的事物。
以爱迪生为例，他从不满足于他当时从书本和老师身上所得到的知识。他一直有很多问题没有找到令他满意的答案。这样的不满足感促使他有了很多重大的发现，进而对人类的进步贡献良多。纵观历史，有很多像爱迪生这样的例子。此外，人类会互相竞争，人们喜欢跟别人并驾齐驱。所以有人得到某个令人渴望的东西时，认识他的人也会想要得到。而且，人们还喜欢表现自我，让自己跟别人有所不同。这使人们自发性地去做某些事情，或发明某种新奇的事物，进而创造引领他人跟随的新风潮。
基于以上理由，我认为人们永远不会真的对现状感到满足。人们永远都会努力追求更新或更好的事物，而这样的过程能促使我们进步。对我们而言，某种程度的不满足终究也算是好事。