Sun Tzu
Sūnzǐ · Traditionally Spring and Autumn; text Warring States
Sun Tzu, traditionally associated with the state of Qi and the state of Wu, was a Chinese military general, strategist, and philosopher who lived during the Eastern Zhou period. He is traditionally credited as the author of The Art of War, one of the earliest surviving Chinese military treatises and one of the most influential works on strategy.
Who was Sun Tzu?
Tradition gives him a biography: Sun Wu of Qi, who presented his book to King Helü of Wu and was handed an army, including the famous story of drilling the king’s concubines and executing two of them for failing to obey orders. The received text quotes weapons and administrative arrangements that postdate him by centuries, and mentions cavalry practices from the Warring States, so most specialists treat The Art of War as a compilation that acquired his name. Sun Bin is a later strategist whom tradition links to the same lineage. That link is traditional, not proven, and the earlier leave it at that.
What did Sun Tzu teach?
Knowing is the first campaign
“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.”
— Art of War III.18 · 知彼知己，百战不殆 · trans. Giles, 1910
Chapter 3 gives the line everyone types into search, and the version everybody quotes stops halfway. It isn’t a claim about self-belief. It’s a ranking of ignorance, arranged from the best case to the worst, and the negative cases matter at least as much as the famous positive one. Most business use of this sentence omits them, which turns an argument about reconnaissance into a motivational poster.
Victory has a cheaper form
“Hence to fight and conquer in all your battles is not supreme excellence; supreme excellence consists in breaking the enemy’s resistance without fighting.”
— Art of War III.2 · 是故百战百胜，非善之善者也；不战而屈人之兵，善之善者也 · trans. Giles, 1910
This is the sentence that makes the book interesting to read now, and it comes from a general, not a contemplative. The reasoning underneath is pure cost accounting:
“There is no instance of a country having benefited from prolonged warfare.”
— Art of War II.6 · 夫兵久而国利者，未之有也 · trans. Giles, 1910
Chapter 2 itemises what a hundred thousand men costs per day, down to glue and paint for the chariots. A commander who wins slowly has spent a state. Everything else in the book, including the deception chapter, follows from that arithmetic.
Deception, precisely
“All warfare is based on deception. Hence, when able to attack, we must seem unable; when using our forces, we must seem inactive; when we are near, we must make the enemy believe we are far away; when far away, we must make him believe we are near.”
— Art of War I.18-19 · 故能而示之不能，用而示之不用，近而示之远，远而示之近 · trans. Giles, 1910
I have quoted two numbered verses together because they run together in the original, and because stripping them apart is what produces the nonsense. Deception here is specific and physical: misrepresenting your position, readiness, and distance so that the other commander plans against a situation that doesn’t exist. It isn’t a licence to lie to colleagues.
The second and less quoted strand shows up a few lines later:
“If your opponent is of choleric temper, seek to irritate him. Pretend to be weak, that he may grow arrogant.”
— Art of War I.22 · 怒而挠之，卑而骄之 · trans. Giles, 1910
Also timing, which most retellings replace with vague adaptivity:
“Let your plans be dark and impenetrable as night, and when you move, fall like a thunderbolt.”
— Art of War VII.19 · 难知如阴，动如雷震 · trans. Giles, 1910
Which Sun Tzu quotes are fake?
No ancient text has been more heavily pressed into service by people who have not read it. Business culture in particular has invented dozens of lines, and several now have higher search volume than anything genuine.
Did Sun Tzu say "Keep your friends close and your enemies closer"?
No. That line was written by Mario Puzo and Francis Ford Coppola for Michael Corleone in The Godfather Part II, released in 1974. Sun Tzu does write about knowing your enemy, which is why the two get mixed, but the formulation and the sentiment are Hollywood’s. If you want something adjacent from the actual book, try III.18 above.
Did Sun Tzu say "Opportunities multiply as they are seized"?
It appears in no published translation of the text, and it cuts against his whole method. Chapter 1 is about calculating before you commit and comparing seven factors at leisure; the essence of the book is that one doesn’t improvise toward opportunities. The sentence is modern and unowned.
Did Sun Tzu say "Appear weak when you are strong, and strong when you are weak"?
The couplet everyone quotes is a modern tidy-up of two separate passages, I.19 and I.22, both printed above. The strategic idea is genuinely his. The wording commonly shared is a populariser’s condensation, which matters because the condensed version reads as advice about posture in negotiations, while the original is about battlefield intelligence.
Did Sun Tzu say "The true objective of war is peace"?
That sentence comes from James Clavell’s foreword to an English edition, not from the Chinese. The nearest genuine statement is structural rather than sentimental: prolonged war exhausts a state, so the profitable way of carrying it on is the short one. See II.6 above for his actual sentence.
How to sit with him
Read The Art of War whole. It takes maybe ninety minutes, which is less time than most people spend reading summaries of it. Then read a Daoist page for the timing and the yielding, and a Legalist one for institutions and accountability. On this shelf that means Laozi and Han Feizi, and the Chinese tradition places the strategists alongside those schools rather than above them.
What he prized
Know both sides
Ignorance is ranked. The worst case is not knowing the other and not knowing yourself.
Shape before you strike
Victory is prepared in positioning, timing, and the ground — not only in the clash.
Win without battle
Breaking resistance without fighting is placed above winning by slaughter. Force is a last expense.
Orthodox and extraordinary
Meet what is expected, then arrive from the side the other cannot cover.
Key work
The most influential ancient Chinese treatise on strategy, and among the oldest that still circulate widely. A book of positioning, timing, and the mind of conflict.
Questions People Ask
Who was Sun Tzu?
Sun Tzu was an ancient Chinese military strategist who lived around the 6th century BC. He is best known as the author of The Art of War.
What did Sun Tzu teach?
Sun Tzu emphasized careful planning, intelligence, adaptability, preparation, and understanding both yourself and your opponent. He believed that the best strategy could achieve victory while minimizing unnecessary conflict.
Why is Sun Tzu important today?
Because the reasoning is about asymmetric information and resource limits rather than about weapons, which is why it migrates so easily into business, negotiation, and sport. The migration is real. It can also become cheap, so read the chapter before applying the sentence.
How many chapters are in The Art of War?
Thirteen, and the whole text is shorter than most novels’ appendix. That brevity is why misattributions are easy to catch: if a quotation can’t be placed in a chapter, it probably came from somewhere else.