Sun Tzu quote explained
What did Sun Tzu mean by know yourself and know your enemy?
知己知彼，百战不殆。
A source-aware explanation for English readers, with pinyin, natural meaning, business use, and safe citation notes.
At a Glance
| Original Chinese | 知己知彼，百战不殆。 |
|---|---|
| Pinyin | zhī jǐ zhī bǐ, bǎi zhàn bù dài |
| Literal meaning | Know yourself and know the other side; in a hundred battles you will not be endangered. |
| Natural English | Good strategy requires honest self-knowledge and clear understanding of the competitive landscape. |
| Source | The Art of War, Chapter 3 |
| Attribution confidence | source-backed; confidence 85 |
Translation Ladder
| Literal | Know yourself and know the other side; in a hundred battles you will not be endangered. |
|---|---|
| Natural English | Good strategy requires honest self-knowledge and clear understanding of the competitive landscape. |
| Best modern use | Use it for competitor analysis, negotiation, market positioning, startup strategy, or team planning. |
| What it does not mean | In business writing, do not call customers enemies. Use market, counterpart, competitor, stakeholder, or competitive landscape. |
Source and Citation Check
This is a source-backed Art of War idea. English wording varies, so cite the Chinese line when possible.
For formal writing, cite the Chinese line and the source label, then treat the English wording as an explanatory rendering.
When to Use This Quote
Use it for competitor analysis, negotiation, market positioning, startup strategy, or team planning.
Copy-Ready Examples
For an essay
知己知彼，百战不殆。 can be explained as: Good strategy requires honest self-knowledge and clear understanding of the competitive landscape. This helps the writer use Chinese wisdom as an argument, not as decoration.
For a speech
The Chinese line 知己知彼，百战不殆。 gives a compact way to explain this idea: Good strategy requires honest self-knowledge and clear understanding of the competitive landscape.
For business
Good strategy requires honest self-knowledge and clear understanding of the competitive landscape. In business language, the safer interpretation is about preparation, judgment, risk, trust, learning, or responsibility depending on the situation.
Common Mistake and Safe Use
In business writing, do not call customers enemies. Use market, counterpart, competitor, stakeholder, or competitive landscape.
Related but Not Equivalent
These are bridges for English readers, not exact translations or claims of shared origin.
Questions People Ask
What does 知己知彼，百战不殆。 mean?
Sun Tzu is not only saying to study an opponent. He is saying that strategic judgment requires knowing your own capacity, limits, timing, and the other side's position.
Can I use this in business writing?
Yes, if you explain the modern context and avoid making normal business problems sound like literal warfare.
Is it safe to cite?
This is a source-backed Art of War idea. English wording varies, so cite the Chinese line when possible.