Moreover, since ethical naturalism proves itself insufficient for the principles of any and all morality, it is but a natural conclusion that it is still less able to produce those principles which are characteristic of the highest representation of human morality known to mankind, namely: _Christian morality_. Ethical monism has no room for three ethical fundamental views, whose full possession morality owes to Christianity, and which gives to Christian morality its highest motive power. One of these is a deeper conception of evil as a sin, as a positive rebellion against the good; another is faith in a future {385} absolute realization of the highest good in an end sometime to be reached by mankind and the individual and by means of a moral order of the world; and the third is the acknowledgment of the full worth of personality. Evil--to which of course no objective valid moral law, but only one conventionally established, stands opposed--is to ethical naturalism nothing but the action of an instinct which in this given case is not beneficial to man in his struggle for existence; the category of good and evil is entirely replaced by the category of the useful and detrimental. With the disappearance of the idea of sin as a transgression of the divine law, the correlated idea of holiness also disappears from the system of ethical naturalism. Besides, blessedness, complete harmony of the outer and inner man with the ideal in the state of mankind as well as of every individual, complete realization of the highest good for the whole as well as for the single through the means of moral work and perfection on the part of man and of holy and loving guidance and endowment on the part of God, is an aim which naturalism is not able to acknowledge, since, according to it, mankind and individuals continue in the ever-flowing stream of earthly incompletion until both reach their destiny in annihilation. A moral order of the world is an impossibility to it, since no holy and loving Ruler and Governor of the world, but only a blind mechanism, causes the course of things. Finally, the personality of man can be only perceived in its worth and in its full importance, when, in the first place, it is in the possession of freedom, of full moral responsibility; and when, in the second place, it lives beyond the span of its short earthly existence and may hope for a full realization of {386} all its ideals of virtue and the highest good for itself as well as for mankind. Both these points must be contested by monism and naturalism. The place of freedom is taken by absolute determinism; even man is only a natural product, the highest which naturalism knows, but still no more than a product of nature; his personality and his life, bound to the material body, cease with the death of this body, and therefore never reach the ideal of either morality or blessedness. All ideals are and must forever remain objective illusions