If we take a general view of the four elements composing the atmosphere in which War moves, of danger, physical effort, uncertainty, and chance, it is easy to conceive that a great force of mind and understanding is requisite to be able to make way with safety and success amongst such opposing elements, a force which, according to the different modifications arising out of circumstances, we find termed by military writers and annalists as energy, firmness, staunchness, strength of mind and character. All these manifestations of the heroic nature might be regarded as one and the same power of volition, modified according to circumstances; but nearly related as these things are to each other, still they are not one and the same, and it is desirable for us to distinguish here a little more closely at least the action of the powers of the soul in relation to them.
In the first place, to make the conception clear, it is essential to observe that the weight, burden, resistance, or whatever it may be called, by which that force of the soul in the General is brought to light, is only in a very small measure the enemy’s activity, the enemy’s resistance, the enemy’s action directly. The enemy’s activity only affects the General directly in the first place in relation to his person, without disturbing his action as Commander. If the enemy, instead of two hours, resists for four, the Commander instead of two hours is four hours in danger; this is a quantity which plainly diminishes the higher the rank of the Commander. What is it for one in the post of Commander-in-Chief? It is nothing.
Secondly, although the opposition offered by the enemy has a direct effect on the Commander through the loss of means arising from prolonged resistance, and the responsibility connected with that loss, and his force of will is first tested and called forth by these anxious considerations, still we maintain that this is not the heaviest burden by far which he has to bear, because he has only himself to settle with. All the other effects of the enemy’s resistance act directly upon the combatants under his command, and through them react upon him.