I have already spoken of the religions evolution. According to Hartmann, in the primitive stage of human development happiness appeared attainable during the lifetime of the individual; this appeared impossible later on and its realization was referred to the life beyond the tomb; and now the tendency is to refer its realization to the earthly life of humanity, not to the life of the individual as in primitive times, but to series of generations yet unborn. The same is true in the political domain. Herbert Spencer remarks (Principles of Sociology, Vol. II, Part V, Chap. V,) that the will of all--the sovereign element among primitive mankind--gradually gives way to the will of a single person, then to those of a few (these are the various aristocracies: military, hereditary, professional or feudal), and the popular will finally tends again to become sovereign with the progress of democracy (universal suffrage--the referendum--direct legislation by the people, etc.). The right to administer punishment, a simple defensive function among primitive mankind tends to become the same once more. Criminal law no longer pretends to be a teleological agency for the distribution of ideal justice. This pretension in former days was an illusion that the belief in the freedom of the will had erected on the natural foundation of society's right of self-defense. Scientific investigations into the nature of crime, as a natural and social phenomenon, have demonstrated to-day how absurd and unjustified was the pretension of the lawmaker and the judge to weigh and measure the guilt of the delinquent to make the punishment exactly counterbalance it, instead of contenting themselves with excluding from civil society, temporarily or permanently, the individuals unable to adapt themselves to its requirements, as is done in the case of the insane and the victims of contagious diseases. The same truth applies to marriage. The right of freely dissolving the tie, which was recognized in primitive society, has been gradually replaced by the absolute formulae of theology and mysticism which fancy that the "free will" can settle the destiny of a person by a monosyllable pronounced at a time when the physical equilibrium is as unstable as it is during courtship and at marriage. Later on the reversion to the spontaneous and primitive form of a union based on mutual consent imposes itself on men, and the matrimonial union, with the increase in the frequency and facility of divorce, reverts to its original forms and restores to the family, that it to say to the social cell, a healthier constitution.