“The art of war is of vital importance to the State.”
War shapes the fate of the state; it deserves deliberate, top-level attention rather than being left to chance or habit.
The very first sentence of the entire book — and it is a sentence about attention, not combat. Sun Tzu opens The Art of War by ruling on priority: strategy is a matter of vital importance to the State. Before any maxim about enemies or terrain, he establishes the stakes that justify everything that follows — this is the subject a ruler cannot delegate, cannot treat as routine, and cannot afford to learn casually.
A company treats office-vendor selection with three committee meetings and a scoring matrix — and enters its most important market with a memo and a hunch. The asymmetry is backwards: the consequential, hard-to-reverse choices are the ones that deserve the slow, deliberate treatment, and the reversible ones should be fast and cheap. Auditing which is which is itself a strategic act.
The line is not a call to agonize over everything with equal gravity — that inverts it. If strategy is vital, then the correct allocation of scarce seriousness matters more, not less: maximum focus on the few decisions that shape the enterprise, brisk confidence everywhere else. Sun Tzu’s opening sentence is about ranking, not anxiety.