Only the element of chance is needed to make war a gamble, and that element is never absent.
Carl von ClausewitzWhere execution is dominant, as it is in the individual events of a war whether great or small, then intellectual factors are reduced to a minimum.
Carl von Clausewitz[The cause of inaction in war] ... is the imperfection of human perception and judgment which is more pronounced in war than anywhere else. We hardly know accurately our own situation at any particular moment while the enemy's, which is concealed from us, must be deduced from very little evidence.
Carl von Clausewitz