Among military men, there has been much mistaken praise for the virtue of "mechanical obedience." There is no such thing. Men think in their smallest actions; if this were not so, it would not be possible to lead them. What has been blindly termed "mechanical response" requires perhaps a higher concentration of will than any other type of action, and hence of thought itself, since the two are inseparable. The forces in which this characteristic was outstanding have been those which were led with the highest degree of intelligence and of understanding of human nature. For unity of spirit and of action, which is the essence of _esprit de corps_, is of all military miracles the most difficult to achieve. Yet its abiding principle is simple. It comes of integrity and clarification of purpose. The able officer is not a Saul waiting for the light to strike him on the Damascus road, but a Paul having a clear understanding that unless the trumpet give forth a certain sound at all times, none shall prepare himself for the battle. Given such officers, the organization comes to possess a sense of unity and of fraternity in its routine existence which expresses itself as the force of cohesion in the hour when all ranks are confronted by a common danger. It is not because of mutual enthusiasm for an honored name but because of mutual confidence in one another that the ranks of old regiments or the bluejackets serving a ship with a great tradition are able to convert their esprit into battle discipline. Under stress they move and act together because they have imbibed the great lesson, and experience has made its application almost instinctive, that only in unity is there safety. They believe that they can trust their comrades and commanders as they would trust their next of kin. They have learned the necessity of mutual support and a common danger serves but to bind the ranks closer. But the race is not always to the swift nor the battle to the strong. The newest unit--one born only yesterday--is as susceptible to a vaulting esprit as any which traces its founding to the beginnings of the Republic. Led by those who themselves are capable of great endeavour, who are quick to encourage and slow to disparage, and are ever ready to make due acknowledgment of worthy effort and to let men know wherein they are forging ahead, any military organization serving our flag will come to count this among its strengths. There are no tricks to the building of esprit. Its techniques are those which come naturally in the course of stimulating the interest of ranks in all of the great fundamentals of the military profession, rather than selling short their intelligence, and taking it for granted that they want nothing beyond the routine of work, liberty, mess call, and payday.