Karl Von Clausewitz

"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."

"Courage, above all things, is the first quality of a warrior."

"Many intelligence reports in war are contradictory even more are false, and most are uncertain."

"Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating."

"To secure peace is to prepare for war."

"A conqueror is always a lover of peace."