Niebuhr argued that to approach religion as the individualistic attempt to fulfill biblical commandments in a moralistic sense is not only an impossibility but also a demonstration of man's original sin, which Niebuhr interpreted as self-love. Through self-love man becomes focused on his own goodness and leaps to the false conclusion—one he called the "Promethean illusion"—that he can achieve goodness on his own. Thus man mistakes his partial ability to transcend himself for the ability to prove his absolute authority over his own life and world. Constantly frustrated by natural limitations, man develops a lust for power which destroys him and his whole world. History is the record of these crises and judgments which man brings on himself; it is also proof that God does not allow man to overstep his possibilities. In radical contrast to the Promethean illusion, God reveals himself in history, especially personified in Jesus Christ, as sacrificial love which overcomes the human temptation to self-deification and makes possible constructive human history.