Human being have progressed significantly in both material and , however, we still live in a imperfect society where still have extremes of human behavior, such as violence, murder, terrorism, all of which not only menace people's life, but also threaten the stability of our society. I agree that the stability of a society largely depends on how it responds to the extremes of human behavior, but not all. It is the society's undeniable duty to …showed first 75 words of 467 total…

…showed last 75 words of 467 total…are no sign that the society can eradicate the extremes of human behavior, since they are stirred by those social problems, or in another word, they deeply rooted in those social problems. In a word, the stability of a society, which is desirable to almost everyone, depends not only on the society's response to the extremes of human behavior but also on how the society resolves the social problems underlying the extremes of human behavior.