This society is not absolutely fair，even in a society with the most sound legal system, absolute fairness is not easy to achieve. Perhaps we will think, why do people have differences in economic status? Why do the same things happen to different people with different results? Why can't you get what you deserve when you try? These questions are really hard to answer. However, one thing we can be sure is, while we are asking for a fair world, have we done our best? Do we have a clear conscience? We must remember that when the beginning cannot be changed, the process can often change the final result!