By 'intelligence' we mean every sort of information about the enemy and his country - the basis, in short, of our own plans and operations.
Carl von ClausewitzAs each man's strength gives out, as it no longer responds to his will, the inertia of the whole gradually comes to rest on the commander's will alone. The ardor of his spirit must rekindle the flame of purpose in all others; his inward fire must revive their hope.
Carl von Clausewitz