So far from constituting a “permanent settlement,” our third type of guarantee is an intimation that the problem still remains unsettled. The work will not be complete until we can dispense with the instrument, but the instrument will not accomplish the work unless it is wielded by a craftsman’s hand. Not only are guarantees of our third type merely the means to an end beyond themselves: the contract in which it is embodied is in this case the least important part of the guarantee. When we guarantee a national minority we have of course to define certain liberties which it is to enjoy—liberties, for instance, of religion, education, local self-government—and all the parties to the Conference must contract responsibility for the observance of such stipulations; yet when we have done this, we cannot simply deposit our document in some international “Ark of the Covenant” and go our ways. The essence of the guarantee is its subsequent interpretation. The relation between the different elements in a country is continually changing. One church dwindles while another makes converts; one race advances in culture while another degenerates; man’s indefatigable struggle to dominate his physical environment alters the natural boundaries between localities: a barrier that once seemed insurmountable is pierced, and leaves one formerly insignificant in relative prominence. Each of these modifications demands an adjustment of the guarantee, and since they are an infinite series, the guarantee itself requires ceaseless manipulation if it is to perform its function aright. [Sidenote: The changing organism needs a new form of international executive.] This need cannot be satisfied by the original _fiat_ of the International Conference: it can only be met by the appointment of a standing international committee with executive powers, empowered, that is, to administer and interpret the contracts to which the members of the Conference have originally subscribed. Our third type of guarantee has thus presented us with the clue we sought. The letter of international law has proved ineffective hitherto because it has lacked the inspiration of a living spirit, and this spirit can only be breathed into it by a human organ of international authority. [Sidenote: The executive and the guarantees.] Supposing that such an organ were called into existence, what kind of international relations would naturally fall within its scope? We can analyze its probable sphere of activity into several departments. (i.) The first branch would of course be those guarantees of national minorities which have just taught us the necessity for its existence. (ii.) The second branch would include the two subjects of guarantee we dealt with first, namely, “Political Independence” and “Rights of Way.” We can see now that their administration by a representative international executive would eliminate that defect of rigidity which has always proved fatal to them heretofore.