Therefore the miracles are not done by man, but by the superman, who in the religious term is called the divine man. Man is inferior in his selfishness; when he rises above self, he is superior. Therefore the right to develop will-power is the right of the superior man. The difference between what they call white magic and black magic lies only in the use made by the inferior man or by the superior man of the same will-power. It is just as by the strength of arm you can take man's life or you can save man's life; both things are accomplished by the same power.