Justice is a fundamental and essential moral law because it is a vital regulation of social life and murder is the greatest crime because it is the greatest social delinquency; and these are inherent in the social nature of moral law. "Moral law slowly dawns in the mind of the human race as a regulation of a man's relation with his fellows in the interest of social life. It is quite independent of religion, since it has entirely different roots in human psychology." (Joseph McCabe: "Human Origin of Morals.")

In the mind of primitive man there is no connection between morality and the belief in a God. "Society is the school in which men learn to distinguish between right and wrong. The headmaster is custom and the lessons are the same for all. The first moral judgments were pronounced by public opinion; public indignation and public approval are the prototypes of the moral emotions." (Edward Westermarck: "Origin and Development of the Moral Ideas.")

Moral ideas and moral energy have their source in social life. It is only in a more advanced society that moral qualities are assumed for the gods. And indeed, it is known that in some primitive tribes, the gods are not necessarily conceived as good, they may have evil qualities also. "If they are, to his mind, good, that is so much the better. But whether they are good or bad they have to be faced as facts. The Gods, in short belong to the region of belief, while morality belongs to that of practice. It is in the nature of morality that it should be implicit in practice long before it is explicit in theory. Morality belongs to the group and is rooted in certain impulses that are a product of the essential conditions of group life. It is as reflection awakens that men are led to speculate upon the nature and origin of the moral feelings. Morality, whether in practice or theory, is thus based upon what is. On the other hand, religion, whether it be true or false, is in the nature of a discovery—one cannot conceive man actually ascribing ethical qualities to his Gods before he becomes sufficiently developed to formulate moral rules for his own guidance, and to create moral laws for his fellowmen. The moralization of the Gods will follow as a matter of course. Man really modifies his Gods in terms of the ideal human being. It is not the Gods who moralize man, it is man who moralizes the Gods." (Chapman Cohen: "Theism or Atheism.")

In the formation of the Old Testament, the moralization of Yahveh led to the creation of a god who coincided more with the morality of the later writers, the God Elohim.

"Rather must we say that morality begins in human social relations and passes from them to the relations maintained with the other life and with the Gods. Or, if one prefers to consider ghosts and gods as inseparable elements of the primary organism, then we should say that morality is born in that all-embracing psychical atmosphere. But it does not follow from that fact that the rise and development of morality are conditioned by belief in Gods and in immortality. Merely human relations are sufficient to the production of ethical appreciations. The invisible ghosts and Gods would never have been thought interested in the morality of the tribe, had not the leaders realized the importance of courage, of loyalty, of respect for neighbors' possessions, and the other elementary virtues. It is when the disastrous consequences of their absence became evident that the Gods were made to sanction these virtues. God or no God, immortality or no immortality, the essential morality of man would have been what it is." (J. H. Leuba: "Belief in God and Immortality.")

The best that is in man is generated in the experiences of his daily life. The attributing of moral qualities to the gods was a much later development in the evolution of the moral ideas. At this stage of our development man is fortified by a sense of human fellowship, and in practice, as well as in theory, has long since given up the assumption that he needed superhuman beliefs. He has fully recognized the independence of morality from superhuman beliefs.

James Mill and J. S. Mill taught the greatest happiness of the greatest number as the supreme object of action and the basis of morality. And it was this conception that introduced the new ethical principles of duty to posterity. This conception is a much nobler one than the religious interpretation of morality to consist in mainly defining what man's duty to God is; a morality whose chief selfish inspiration is not the helping of one's fellowmen but the saving of one's own soul. A secular morality teaches that what man thinks, says, and does lives after him and influences for good or ill future generations. This is a higher, nobler, and greater incentive to righteousness than any life of personal reward or fear of punishment in a future life. There are today a rapidly growing number of eminent moral teachers who condemn the clinging to the belief of personal existence after death as a hindrance to the best life on earth. Professor J. H. Leuba, in his work, "The Belief in God and Immortality," concludes that, "These facts and considerations indicate that the reality of the belief in immortality to civilized nations is much more limited than is commonly supposed; and that, if we bring into calculation all the consequences of the belief, and not merely its gratifying effects, we may even be brought to conclude that its disappearance from among the most civilized nations would be, on the whole, a gain."

There are few educated men nowadays who would claim that morality cannot exist apart from religion. Theists are desperately attempting to harmonize a primitive theory of things, with a larger knowledge and a more developed moral sense. Morality is fundamentally the expression of those conditions under which associated life is found possible and profitable, and that so far as any quality is declared to be moral its justification and meaning must be found in that direction. "Our alleged essential dependence upon transcendental beliefs is belied by the most common experiences of daily life. Who does not feel the absurdity of the opinion that the lavish care for a sick child by a mother is given because of a belief in God and immortality? Are love of father and mother on the part of children, affection and serviceableness between brothers and sisters, straight-forwardness and truthfulness between business men, essentially dependent upon these beliefs? What sort of person would be the father who would announce divine punishment or reward in order to obtain the love and respect of his children? And if there are business men preserved from unrighteousness by the fear of future punishment, they are far more numerous who are deterred by the threat of human law. Most of them would take their chances with heaven a hundred times before they would once with society, or perchance with the imperative voice of humanity heard in the conscience." (Leuba.)

The primary motive of moral standards and practices is man's desire to seek happiness and avoid pain. And so it is not strange that morality has become stronger as the power of religion has weakened. "Right through history it has been the social instincts that have acted as a corrective to religious extravagances. And it is worth noting that with the exception of a little gain from the practice of casuistry, religions have contributed nothing towards the building up of a science of ethics. On the contrary, it has been a very potent cause of confusion and obstruction. Fictitious vices and virtues have been created and the real moral problems lost sight of. It gave the world the morality of the prison cell, instead of the tonic of the rational life. And it was indeed fortunate for the race that conduct was not ultimately dependent upon a mass of teachings that had their origin in the brains of savages, and were brought to maturity during the darkest period of European civilization.... And we know that the period during which the influence of Christian theism was strongest, was the period when the intellectual life of civilized man was at its lowest, morality at its weakest, and the general outlook hopeless. Religious control gave us heresy hunts, Jew hunts, burning for witchcraft, and magic in place of medicine. It gave us the Inquisition and the auto da fe, the fires of Smithfield, and the night of St. Bartholomew. It gave us the war of sects, and it helped powerfully to establish the sect of war. It gave us life without happiness, and death cloaked with terror. The Christian record is before us, and it is such that every Church blames the others for its existence. Quite as certainly we cannot point to a society that has been dominated by Freethinking ideals, but we can point to their existence in all ages, and can show that all progress is due to their presence. We can show that progressive ideals have originated with the least, and have been opposed by the most religious sections of society." (Cohen.)

The puerile conception of heaven and the savage conception of hell are still, in modified form, deemed necessary for a religious morality. Why it should be necessary for a supreme intelligence to make all things straight in another world, that he could more convincingly rectify in this one, is a conception which has escaped the reason of a freethinker, but has been very profitable to those on earth that lead their adherents to believe that they hold the keys to our future abodes. Winwood Reade in his "Martyrdom of Man," discussing the moral value of the fears of hell-fire, states, "a metaphysical theory cannot restrain the fury of the passions; as well attempt to bind a lion with a cobweb. Prevention of crime, it is well known, depends not on the severity, but on the certainty of retribution. The supposition that the terrors of hell-fire are essential or even conducive to good morals is contradicted by the facts of history. In the Dark Ages there was not a man or woman from Scotland to Naples, who doubted that sinners were sent to hell. The religion which they had was the same as ours, with this exception, that everyone believed in it. The state of Europe in that pious epoch need not be described. Society is not maintained by the conjectures of theology, but by those moral sentiments, those gregarious virtues which elevated men above the animals, which are now instinctive in our natures and to which intellectual culture is propitious. For, as we become more and more clearly enlightened, we perceive more and more clearly that it was with the whole human population as it was with the primeval clan; the welfare of every individual is dependent on the welfare of the community, and the welfare of the community depends on the welfare of every individual."