Everything in war is very simple, but the simplest thing is difficult. The difficulties accumulate and end by producing a kind of friction that is inconceivable unless one has experienced war. ... Countless minor incidents - the kind you can never really foresee - combine to lower the general level of performance, so that one always falls short of the intended goal.
Carl von ClausewitzGiven the same amount of intelligence, timidity will do a thousand times more damage than audacity
Carl von ClausewitzThe political object is the goal, war is the means of reaching it, and the means can never be considered in isolation form their purposes.
Carl von ClausewitzBy '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 ClausewitzKnowledge in war is very simple, being concerned with so few subjects, and only with their final results at that. But this does not make its application easy.
Carl von Clausewitz