It is common belief that science don't need a limit of area. The reasons of this opinion are two things: scientist can research about any parts such as the Earth, science area is significantly huge except people's lives. However, some people argue that the goal of science have to include the improvement of people's lives. The reasons why people argue this statement are also two important things: the research for people's life can make a lot of money, the science has made essential result as improvement of people's life such as solving medical problems.