What is required to insure the maintenance of peace among pacific nations is the neutralisation of all those human relations out of which international grievances are wont to arise. And what is necessary to assure a reasonable expectation of continued peace is the neutralisation of so much of these relations as the patriotic self-conceit and credulity of these peoples will permit. These two formulations are by no means identical; indeed, the disparity between what could advantageously be dispensed with in the way of national rights and pretensions, and what the common run of modern patriots could be induced to relinquish, is probably much larger than any sanguine person would like to believe. It should be plain on slight reflection that the greater part, indeed substantially the whole, of those material interests and demands that now engage the policy of the nations, and that serve on occasion to set them at variance, might be neutralised or relinquished out of hand, without detriment to any one of the peoples concerned. The greater part of these material interests over which the various national establishments keep watch and hold pretensions are, in point of historical derivation, a legacy from the princely politics of what is called the "Mercantilist" period; and they are uniformly of the nature of gratuitous interference or discrimination between the citizens of the given nation and outsiders. Except (doubtfully) in the English case, where mercantilist policies are commonly believed to have been adopted directly for the benefit of the commercial interest, measures of this nature are uniformly traceable to the endeavours of the crown and its officers to strengthen the finances of the prince and give him an advantage in warlike enterprise. They are kept up essentially for the same eventual end of preparation for war. So, e.g., protective tariffs, and the like discrimination in shipping, are still advocated as a means of making the nation self-supporting, self-contained, self-sufficient; with a view to readiness in the event of hostilities. A nation is in no degree better off in time of peace for being self-sufficient. In point of patent fact no nation can be industrially self-sufficient except at the cost of foregoing some of the economic advantages of that specialisation of industry which the modern state of the industrial arts enforces. In time of peace there is no benefit comes to the community at large from such restraint of trade with the outside world, or to any class or section of the community except those commercial concerns that are favored by the discrimination; and these invariably gain their special advantage at the cost of their compatriots. Discrimination in trade--export, import or shipping--has no more beneficial effect when carried out publicly by the national authorities than when effected surreptitiously and illegally by a private conspiracy in restraint of trade within a group of interested business concerns.