Using a madman’s month, Nietzsche said that“God is dead... And we have killed him”. The background of this statement is that after industrial revolution, especially 18 century enlightenment, many intellectuals believed the rationalism instead of religion faith. For natural scientists had made many discovering in science, Copernican’s theory of the Sun centre,proved the earth centre theory is wrong, which shaking the Christianity faith. Thus many modern men no longer believe there is a real personify God. “God is dead” means that God is no longer in the hearts of modern men, and rationalism and natural science has killed the God.
If there is no God, moral system based on Christianity faith would collapse, and society will fall into nihilism. Since no God, human being will believe nothing, and life becomes meaningless, and moral system will collapse too. For social life and order, not only rely on law,but also moral system. Nietzsche seems believe that he can build a moral system in earth, for he believes the superman who has strong will, and the will to power.
Christianity faith dominant western society for two thousand years, it influences western society, culture, politics, moral and social life deeply. For western civilization, Churches and priests used to have privileges in political and social life in Western states. Since modern science prove that there is no such thing as personify God, Church should separate with State, and politics should separate with religion; religion and secular should divide and not mixed together. Religion dealing with citizens spirit life, should not intervene state’s political life, this principle become the universal acceptance. Modern states,especially in Christianity society, actually all become highly secular government.The problem is that human being always need some superior power to govern them,since God is dead, both Nazi and Communism regime tried to create “new men”which only bring huge disasters to Human being.