der Handelnde im Kriege die Dinge unaufhörlich anders findet, als er sie erwartet hatte, - Carl von Clausewitz

Knowledge 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.

Die beste Strategie ist: immer recht stark sein, ... . Daher gibt es ... kein höheres und einfacheres Gesetz für die Strategie als das: seine Kräfte zusammenhalten.

All thinking is indeed Art. Where the logician draws the line, where the premises stop which are the result of cognition — where judgment begins, there Art begins. But more than this even the perception of the mind is judgment again, and consequently Art; and at last, even the perception by the senses as well.