The second kind of powers which the State ought to possess are those that aim at diminishing economic injustice. It is this kind that has been emphasized by socialists. The law creates or facilitates monopolies, and monopolies are able to exact a toll from the community. The most glaring example is the private ownership of land. Railways are at present controlled by the State, since rates are fixed by law; and it is clear that if they were uncontrolled, they would acquire a dangerous degree of power.[9] Such considerations, if they stood alone, would justify complete socialism. But I think justice, by itself, is, like law, too static to be made a supreme political principle: it does not, when it has been achieved, contain any seeds of new life or any impetus to development. For this reason, when we wish to remedy an injustice, it is important to consider whether, in so doing, we shall be destroying the incentive to some form of vigorous action which is on the whole useful to the community. No such form of action, so far as I can see, is associated with private ownership of land or of any other source of economic rent; if this is the case, it follows that the State ought to be the primary recipient of rent. If all these powers are allowed to the State, what becomes of the attempt to rescue individual liberty from its tyranny? This is part of the general problem which confronts all those who still care for the ideals which inspired liberalism, namely the problem of combining liberty and personal initiative with organization. Politics and economics are more and more dominated by vast organizations, in face of which the individual is in danger of becoming powerless. The State is the greatest of these organizations, and the most serious menace to liberty. And yet it seems that many of its functions must be extended rather than curtailed. There is one way by which organization and liberty can be combined, and that is, by securing power for voluntary organizations, consisting of men who have chosen to belong to them because they embody some purpose which all their members consider important, not a purpose imposed by accident or outside force. The State, being geographical, cannot be a wholly voluntary association, but for that very reason there is need of a strong public opinion to restrain it from a tyrannical use of its powers. This public opinion, in most matters, can only be secured by combinations of those who have certain interests or desires in common.