05/07/2025
Sun Tzu 3.8-10, 17-18
This is a key section within The Art of War.
We see the way that Sun Tzu calculates which battles to fight (and how to fight them) and which to avoid (and how to avoid them).
Sun Tzu takes various factors into account, including the sizes of the armies and their fighting qualities.
Later, Sun Tzu will explain what to do when other factors enter the picture, such as special considerations around geography, weather, or alliances.
Here, he lays out the basic considerations that show how and when to maneuver your own army and how to decide the time of contact with the opposing army.
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8. It is the rule in war, if our forces are ten to the enemy’s one, to surround him; if five to one, to attack him; if twice as numerous, to divide our army into two.
9. If equally matched, we can offer battle; if slightly inferior in numbers, we can avoid the enemy; if quite unequal in every way, we can flee from him.
10. Hence, though an obstinate fight may be made by a small force, in the end it must be captured by the larger force.
17. Thus we may know that there are five essentials for victory: (1) He will win who knows when to fight and when not to fight. (2) He will win who knows how to handle both superior and inferior forces. (3) He will win whose army is animated by the same spirit throughout all its ranks. (4) He will win who, prepared himself, waits to take the enemy unprepared. (5) He will win who has military capacity and is not interfered with by the sovereign.
18. Hence the saying: If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.
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Line 18 is one of Sun Tzu’s most memorable statements.
In his way of looking at things, “knowing yourself,” is not a vague, spiritual aspiration. It is a matter that is definable and discrete.
Sun Tzu treats matters of war as being within the realm of certainty to the general who knows how to conduct precise logical and mathematical calculations.
For Sun Tzu, war becomes a matter of careful administration of the general’s tasks, including reconnaissance, logistics, preparation and training, and strategic calculation.
Within the context of persuasion and public speech, similar principles apply.
Know the facts of the topic at hand.
Know your own abilities.
Know your audience.
Pay attention to the difference between which broad types of rhetorical battles you are able to win vs. which you cannot win.
Carefully list out the specific topics within a broader debate that favor you and ought to be maximized upon vs. which topics favor the opponent and ought to be mitigated against.
This article offers a framework for deciding what your goal might be when you are attempting to influence different kinds of people:
https://reasoninview.wordpress.com/understanding-your-influence-the-progressor-model/
If you want to have more influence, then surround yourself with people who are capable of being influenced.
See this article for more information about that idea:
https://www.codylibolt.com/2017/09/persuasive/
You can consider 3.8-9 in the context of social media discussions.
//8. It is the rule in war, if our forces are ten to the enemy’s one, to surround him; if five to one, to attack him; if twice as numerous, to divide our army into two.
9. If equally matched, we can offer battle; if slightly inferior in numbers, we can avoid the enemy; if quite unequal in every way, we can flee from him.//
On social media, you get to decide what topics to discuss and who to discuss them with.
Depending on the mood of the cultural moment (which changes year to year, month to month, and even news cycle to news cycle), you may find that some of your writing topics have more interest and more persuasive power than others.
Capitalize on the changing situations.
If you have the ability to convince more people of Topic X today, per effort spent, then put your effort toward Topic X today.
Another day will present another opportunity.
Consider whether you have allies.
-One man shouting against the world is a lunatic.
-Two are a brotherhood.
-Three are a social movement.
What are the topics on which you will reliably find allies who will come to your aid and help legitimize your message?
Numbers ultimately do matter:
10. Hence, though an obstinate fight may be made by a small force, in the end it must be captured by the larger force.
By maneuvering his army, Sun Tzu avoided situations in which he was likely to lose and capitalized upon opportunities in which he was sure to win.
“Maneuvering” in the context of public debates means being mindful about the topics you address and the frame of the discussion itself.
You do not have to fight on every hill. Find the hills that present the best opportunities.
“He will win who knows when to fight and when not to fight.”
“He will win who knows how to handle both superior and inferior forces.”