Whatever form of science we have today, the role of science cannot be ruled out. Science should be considered as an idea and not a subject. It advocates a particular kind of worldview. In a particular method, of course, it claims value neutrality, but for our applications it is fully relative to social values, so let us say science a study of nature, but in any period it is the true hallmark of the need of human beings. So, we should not overlook the history of science. Scientists have given their genius to the society from time to time.