But, it is said, we must trust to experts. International relations are so intricate and have so many delicate shadings that they elude the grasp of the ordinary man, and can be held together and seen in their proper relations only by the comprehensive and experienced mind of the seasoned statesman. There is, however, a distinction which ought to be noted. The public relies in most cases unreservedly upon expertship in matters of engineering, science, accounting, business management, and even in medicine, though in the latter with a feeling of less complete security. In all these cases we know that the processes applied and the methods pursued are demonstrable, and mathematically certain to produce the results anticipated. But in the affairs of international politics into which the human equation and other inexactly calculable factors enter, there is no such mathematical certainty which can be tested and ascertained by any group of experts. It is all a matter of wisdom in choosing alternatives, and we may well doubt whether any man or small group of men, under modern conditions of life and public state action, can be wiser in such matters by themselves than they would be if they constantly kept in direct touch with public opinion. Society, when properly organized, will have at its disposal on every question of importance, groups of men who have expert knowledge. Expertship in foreign affairs is not confined to the foreign offices or the chanceries; many thoughtful men observing and thinking intensely, traveling widely, seeing foreign affairs from an independent angle, have opinions and judgments to contribute that the officials cannot safely ignore. In an inquiry of this kind we shall have to consider the broader setting of diplomacy as a part of public life within the nation and throughout the world. The element of secrecy is appropriate only when we consider diplomacy as a clever game played by a small inner privileged circle; it appears out of place in a society organized on a broader basis. As a matter of fact the defense of secrecy, from the point of view of the inner politics of the state, resolves itself almost entirely into an opinion that the ignorance and inexperience of the people does not fit them to judge of foreign relations. That, it must be confessed, does not seem to be a very sound or convincing basis for the choice of methods of public action in a modern state. But the real strength of the argument for secrecy comes when the external aspects of state action are considered. Then there is, on the surface at least, an apparent justification for secretiveness, in the interest of a closely knit society engaged in competitive struggle with similar societies and obliged to defend itself and to safeguard its interest by all available means.