Sun Tzu quote explained
知彼知己，百战不殆。 Meaning in English
知彼知己，百战不殆。
Original Chinese, pinyin, meaning, source confidence, Western comparison, and safe modern use for English readers.
At a Glance
| Original Chinese | 知彼知己，百战不殆。 |
|---|---|
| Pinyin | zhī bǐ zhī jǐ, bǎi zhàn bù dài. |
| Natural English | Know the other side and know yourself, and you will not be in danger in a hundred battles. |
| Source | Chapter 3 |
| Attribution confidence | reviewed; source confidence 85 |
Meaning in Plain English
Sun Tzu is saying that victory begins with information. You need to know your opponent's strengths and limits, but also your own.
In business or leadership, this becomes a rule about market knowledge and self-assessment.
Translation Ladder
| Original Chinese | 知彼知己，百战不殆。 |
|---|---|
| Pinyin | zhī bǐ zhī jǐ, bǎi zhàn bù dài. |
| Literal direction | Start from the original wording, then explain the idea in natural English instead of translating character by character. |
| Natural English | This Sun Tzu quote means that strategy depends on understanding both your opponent and yourself. |
| Best modern use | Use it for Business Pitch, Team Meeting, Startup Market Uncertainty, Competitor Analysis, Leadership Memo, LinkedIn Post when the context fits the meaning. |
| What it does not mean | Do not use this as a promise that you will win every battle. In business writing, avoid calling customers enemies; use counterpart, competitor, market, or competitive landscape. |
Source and Citation Check
Source status: The Art of War. Confidence: 85.
For essays, speeches, or business writing, cite the original Chinese when possible and avoid assigning the saying to a famous figure unless the source path is visible.
Copy-Ready Examples
For an essay
知彼知己，百战不殆。 can be explained as: This Sun Tzu quote means that strategy depends on understanding both your opponent and yourself. This makes the saying useful when the writer needs a source-aware Chinese idea rather than a decorative quote.
For a speech
An old Chinese line says 知彼知己，百战不殆。. In modern English, the point is simple: This Sun Tzu quote means that strategy depends on understanding both your opponent and yourself.
For business or leadership
This idea can be used carefully in a professional setting when it clarifies judgment, practice, trust, timing, or restraint. The important step is to connect the quote to a real decision, not just display it as culture.
For classroom discussion
Ask students to compare the original Chinese, the pinyin, and the natural English meaning, then decide where the translation gains or loses nuance.
Related but Not Equivalent
- Know your enemy and know yourself
Difference: useful as an English bridge, not proof of exact translation or shared origin. - Know thyself
Difference: useful as an English bridge, not proof of exact translation or shared origin. - The best victory is the one you never have to fight
Difference: useful as an English bridge, not proof of exact translation or shared origin. - Win without fighting
Difference: useful as an English bridge, not proof of exact translation or shared origin. - Self-knowledge is the beginning of wisdom
Difference: useful as an English bridge, not proof of exact translation or shared origin.
When to Use This Quote
Use this quote when the source and context fit your point. Keep the original Chinese and pinyin visible for cultural accuracy.
- business strategy
- competition
- leadership
- decision-making
Modern search and use-case tags
Related Use-Case Pages
Common Mistake and Safe Use
Do not use this as a promise that you will win every battle. In business writing, avoid calling customers enemies; use counterpart, competitor, market, or competitive landscape.
Western Proverb Equivalent
Use these familiar English ideas as bridges, not as exact translations or shared-origin claims.
Similar English Sayings and Western Ideas
These comparisons help English readers understand the idea. They are not claims of shared origin.
Questions People Ask
What does 知彼知己，百战不殆 mean?
It means strategy is safer when you understand both the other side and yourself.
Is this from Sun Tzu?
Yes, it is from The Art of War.
How is it used in business?
It is used to discuss competitive intelligence and self-assessment.