In From Morality to Religion, de Burgh attempts to distinguish the difference between morality and religion. Having shown (in chap. 1) the nature of the distinction between morality and religion, and (chaps. 2, 3, 4) the dualism arising from within ethical experience, the author turns to consider first the positive approach to religion furnished by that experience (chap. 5), and second, the answer given by religion to the unsolved problems of ethics, and especially that of the relation between duty and goodness (chap. 6). In the end, through an illustration of the Christian elements in present-day morality from the concepts of personality and humanity, each of which, in its modern usage, is a legacy from Christianity, de Burgh argues that when severed from its source in religion, morality degenerates into an empty form. Subsequently, once a developed system of morals has become autonomous, the author contends that it reacts against religion and questions the value of religious praxis, despite the fact that religion enjoys a prerogative as theoria and that it claims not to destroy but to fulfil morality. In conclusion, then, de Burgh observes the relativity of moral judgments contrasted with religious theoria of God as the absolute good.