Moreover, if atheism is true, there is no moral accountability for one’s actions. Even if there were objective moral values and duties under naturalism, they are irrelevant because there is no moral accountability. If life ends at the grave, it makes no difference whether one lives as a Stalin or as a saint. As the Russian writer Fyodor Dostoyevsky rightly said: “If there is no immortality, then all things are permitted.”
–William Lane Craig
The one essential condition of human existence is that man should always be able to bow down before something infinitely great. If men are deprived of the infinitely great they will not go on living and die of despair. The Infinite and the Eternal are as essential for man as the little planet on which he dwells.