"What we can do with these means (our own unassisted strength) is still very small compared to what we could do in acting in union with God himself, who created and ultimately controls all other forces."

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Strategy is a system of makeshifts. Is is more than a science. It is bringing knowledge to bear on practical life, the further elaboration of an original guiding idea under constantly changing circumstances. It is the art of acting under the pressure of the most demanding conditions...That is why general principles, rules derived from them, and systems based on these rules cannot possibly have any value for strategy.

— Helmuth von Moltke the Elder