By far the most difficult of all the tasks which Liberalism has to perform is in its conduct of foreign policy. Even in domestic affairs it is often not easy to calculate the effects of particular proposals, how far they can be pressed towards the ideal, in what temper they will be received by the people, with what smoothness they will operate when they have been expressed in an Act of Parliament. It is a matter of accommodating ourselves to somewhat intractable material, and of managing, persuading, and guiding human beings whose motives we cannot directly control. But the facts are at least fairly within reach. The Liberal statesman has as much opportunity as anybody can have of knowing the mental habit and disposition of those whom his legislation will affect. He is acquainted with their history. He is guided by previous successes or failures. In the last resort, he knows that the great bulk of the people concerned will respect the law even if they dislike it, and will express their dissent no more dangerously than by turning him out of office. In foreign affairs his difficulties are infinitely greater, and the consequences of failure may be disastrous. He is dealing, not with subjects, but with independent persons, who, except in a few points settled by agreement, observe no common law with himself. Their objects are obscure, and may only temporarily coincide with his own. They may have private arrangements among themselves of which he knows little or nothing, and if they cheat him in their own interest he has no remedy except one which is so violent as to be worse almost than any disease. Finally, even if his knowledge of the facts were more accurate, and his confidence in his associates more complete, he would still be baffled by the hostility to Liberal ideas which animates some, if not all, of the foreign diplomatists.