there is no other sensible rule than that all men will be approached with trust, and treated as trustworthy until proved otherwise beyond reasonable doubt. To transfer this thought to even the largest element in war, it will be seen that _it is not primarily a cause which makes men loyal to each other, but the loyalty of men to each other which makes a cause_. The unity which develops from man's recognition of his dependence upon his fellows is the mainspring of every movement by which society, or any autonomy within it, moves forward. It is a common practice to say "Men are thus-and-so." Nothing is more attractive than to make some glittering generalization about the human race, and from it draw a moral for the instruction of those who work with human material. But from all that we have learned from the experience of men under inordinate pressure, either in war or wherever else military forces have been sorely tested, it would be false to say either that the desire for economic security or the instinct for self-preservation is the driving force in every man's action. To those who possess the strength of the strong, honor is the main shaft; and they can carry a sufficient number of the company along with them to stamp their mark upon whatever is done by the group. No matter what their personal strength, however, they too are dependent on the others. There is no possibility of growth for any man except through the force, and by the works of those about him, though the manner of his growth is partly a matter of free choice. To most men, the setting of the good example is a challenge to pride and a stimulus to action. To nearly every member of the race, confidence and inspiration come mainly from the influence which living associates have upon them. That training is most perfect which takes greatest advantage of this truth, employing it in balance toward the development of a spirit of comradeship and the doing of work with a manifestly military purpose. Peace training is war training and nothing less. There is no other basis for the efficient operation of military forces even when the skies are clear. _But no commander or instructor can convince men of the decisive importance of the object if he himself regards it as only an intellectual exercise._