The Daily Bill
Sun Tzu opens Waging War with arithmetic, not heroics. A force of a hundred thousand men costs a thousand ounces of silver a day before a single battle is fought. Weapons dull, treasure drains, and neighboring states begin to watch. There is no instance of a country having benefited from prolonged warfare.
A long contest taxes the winner too. Before you match a rival's hiring spree, legal budget, or discount war, calculate the weekly burn. If the fight cannot be short, it may not be worth entering.
"There is no instance of a country having benefited from prolonged warfare."
The Exhausted March
Maneuvering looks like motion until the baggage-train, provisions, and supply bases fall behind. An army without those three is lost. The clever general avoids an opponent whose spirit is still keen and waits until the march has made them sluggish and inclined to return.
Distance and haste spend the same account as combat. If your plan requires people to stay sharp for months without rest, the plan is already losing, even if no one has named a defeat.
"We may take it then that an army without its baggage-train is lost; without provisions it is lost; without bases of supply it is lost."
Move Only for Advantage
Attack by Fire treats leverage as a tool that still has conditions: wind, timing, and a reason to strike. The chapter closes with a rule that belongs to every long contest. Move not unless you see an advantage. Use not your troops unless there is something to be gained. Fight not unless the position is critical.
Activity is not progress. If a week of conflict does not change the outcome, you are paying the chapter 2 bill for a campaign that has already forgotten its object.
"Move not unless you see an advantage; use not your troops unless there is something to be gained; fight not unless the position is critical."
Applying This to Your Life
Name the Burn Rate
Before the next long contest, write the weekly cost in money, attention, and work you will not do. If you cannot name a finish line that arrives soon, you are planning a campaign Sun Tzu already called a loss.
Stop Paying for Motion
Ask whether this week's activity changes the outcome. If it does not, you are foraging on yourself. End the campaign, change the method, or take the advantage that is actually in front of you.
Related Themes in The Art of War
Winning Without Fighting
Break resistance before you spend a siege
Strategic Preparation & Assessment
Score the five factors before the daily cost begins
Varying Tactics Under Pressure
Refuse the command that would lock you into a long, predictable fight
Intelligence & Terrain
Know the ground before you pay to occupy it