知人者智，自知者明: Know Yourself

What does it mean?

知人者智，自知者明 (zhī rén zhě zhì, zì zhī zhě míng) is usually translated “one who knows others is intelligent; one who knows themselves is clear-sighted.” 智 is knowledge or intelligence; 明 is clarity or insight.

Where it comes from

The line is associated with the Tao Te Ching · 道德经, Chapter 33. The surrounding chapter contrasts outward knowledge with inner self-understanding and contentment.

Use and design

The eight characters form two clauses. Keep the comma and both halves if the design is meant to preserve the complete saying. A two-row layout gives each clause equal weight; a long horizontal line needs enough width and clear spacing.

What it does not mean

It is not a guarantee of wisdom, mental health or good decisions. It is an invitation to reflect on the difference between knowing other people and understanding oneself.

Common mistakes

• Shortening it to 知人 or 自知 and losing the contrast.
• Treating the line as a psychological diagnosis.
• Letting a decorative script hide the two parallel clauses.

Related phrases

The fuller context

The line comes from Tao Te Ching · 道德经, Chapter 33, where it sits alongside other contrasts about strength, contentment and persistence. The point is not simply “be smart.” It distinguishes outward knowledge from self-understanding and warns that knowing other people does not automatically produce clarity about oneself.

Modern use

Today the line is often quoted in learning, leadership and reflection contexts. It can be used as a study note or a design phrase, but the two clauses should be kept together when the contrast matters. A single word such as 智 or 明 would not express the same structure.

Translation note

English translations vary between “intelligence,” “wisdom,” “clarity” and “enlightenment.” No one-word translation captures the whole contrast, so a page should state that it is offering a common rendering rather than an exclusive meaning.