"In the city of man, there is no moral consensus, and without a moral consensus there can be no law. Chairman Mao expressed the alternative well; in his view, morality begins at the muzzle of a gun.

There has never been a case in history in which a society has been able to survive for long without a moral code. And there has never been a time when a moral code has not been informed by religious truth. Recovering our moral code-our religious truth-is the only way our society can survive. The heaping remains of ash at Auschwitz, the killing fields of Southeast Asia, and the frozen wastes of the gulag remind us that the city of man is not enough; we must also seek the City of God."

Charles Colson, 'Can We Be Good Without God?'