More important than any consideration of immediate financial results, however, is the permanent influence of Colony discipline upon the inmates; if that were assured, financial success would also be certain, if not to the Colony itself, then to the community outside, which is practically the same thing. It is imperatively necessary, however, that we should at the outset be perfectly clear, not only as to the object aimed at in setting up Detention Colonies, but as to the practical possibilities of these Colonies. The object must not and cannot be to make perfect men out of most imperfect material; it will be the far more modest one of correcting tendencies of character and conduct which are socially injurious, with a view to returning the objects of care to freedom, if they seriously wish to regain freedom, able, under favourable circumstances, to take an independent place amongst the social hewers of wood and drawers of water. Only by setting before ourselves sane and moderate views shall we be working to serious purpose; to act otherwise will be to waste effort and court certain disappointment. It is hardly too much to say that it will be safer to aim too low than too high in undertaking the difficult task of socialising and moralising the loafer. Let us indulge in no illusions on the subject: the proportion of the detainees who will be really "reformed" will be exceedingly small; those upon whom some wholesome influence, of longer or shorter duration, will be exerted, will form a larger number; but it is possible that the great majority will return again and again to detention and may even prove irremediable and entirely unfit to be restored to society. In the main, therefore, the Detaining Colonies may, in the end, prove to be largely institutions of restraint. Yet even on that basis they are necessary, and the service which they will do to society will by no means be a negative service. They will, in fact, be carrying out the idea which more and more finds favour amongst penologists, and which must inevitably be far more rigorously applied in the future than it is now, that persons whose liberty is injurious to the commonwealth must be deprived of that liberty, permanently if necessary, and in any case so long as they continue capable of social harm.