The Art of War by active 6th century B.C. Sunzi

6. An army may march great distances without distress, if it marches

Chapter 162 37 words
through country where the enemy is not. [Ts’ao Kung sums up very well: "Emerge from the void [q.d. like "a bolt from the blue"], strike at vulnerable points, shun places that are defended, attack in unexpected quarters."]