Der Krieg ist eine bloße Fortsetzung der Politik mit anderen Mitteln - Carl von Clausewitz

...an intellectual instinct which extracts the essence from the phenomena of life, as a bee sucks honey from a flower. In addition to study and reflections, life itself serves as a source.

Blind aggressiveness would destroy the attack itself, not the defense.

...any move made in a state of tension will be of more important, and will have more results, than it would have made in a state of equilibrium. In times of maximum tension this importance will rise to an infinite degree.