So the principles of warfare are: Do not depend on the enemy not coming, but depend on our readiness against him. Do not depend on the enemy not attacking, but depend on our position that cannot be attacked.
Sun TzuSubtle and insubstantial, the expert leaves no trace; divinely mysterious, he is inaudible. Thus he is master of his enemy's fate.
Sun TzuHence the saying: The enlightened ruler lays his plans well ahead; the good general cultivates his resources.
Sun Tzu