Let us recapitulate the fundamental concepts. Regarded biologically Morality is Inhibition, the development of which is of the greatest importance to the individual, as it enables him not to waste the living force of his cell plasm and of his organs in sterile reflex movements, but to store it up and hold it ready for useful purposes. The stronger his power of inhibition the better he is armed for the struggle for existence, and the better he is armed the more efficient he is. Denial of the progressive development of Inhibition implies a denial that modern man can maintain himself with more ease and security against Nature and hostile or injurious natural phenomena, and that he is more successful in competition with other men than his predecessors on earth. But this latter denial is obviously nonsense. The only individuals who do not take part in progressive development are the degenerates. They are organically inferior, their faculty of inhibition is defective or altogether lacking, they are slaves of impulses which their will and intelligence have no means of controlling, they are the outcome of morbidly arrested or retrograde development, they are the victims and refuse of a civilization too intensive, too exhausting and wearing for some men, and they are destined to fall out of the ranks of a race moving majestically forward and to lie helplessly by the roadside. From the sociological point of view Morality is the bond which unites the individuals in a community, the foundation upon which alone society can be built up and maintained. For it implies a victory over self, consideration for one's neighbour, recognition of his rights, concession of his claims, even when valued possessions must unwillingly be given up and painful renunciation of attainable satisfaction is required. This is neighbourly kindness and the charity of the Bible, Hutcheson's and Hume's benevolence, Adam Smith's sympathy and Herbert Spencer's altruism; it is the necessary condition on which alone individuals can live peaceably together and helpfully assist each other to make life easier. If most or all individuals lack it, we have Hobbes's war of all against all; then man is as a wolf to other men, and each one is condemned to the state of a beast roaming in loneliness. If a few, a minority, lack it, then the majority will not tolerate them in its midst, but will expel them from the community as a dangerous nuisance and deprive them of the privilege of mutual aid and of the advantage of joint responsibility.