Two qualities are indispensable: first, an intellect that, even in the darkest hour, retains some glimmerings of the inner light which leads to truth; and second, the courage to follow this faint light wherever it may lead.
Carl von ClausewitzGiven the same amount of intelligence, timidity will do a thousand times more damage than audacity
Carl von ClausewitzNo one starts a war--or rather, no one in his sense ought to do so--without first being clear in his mind what he intends to achieve by the war and how he intends to conduct it.
Carl von Clausewitz