"Those that know, do. Those that understand, teach"
About this Quote
The subtext is Aristotelian to the core. For him, knowledge is not just a pile of facts; it is grasping causes, categories, and first principles. "Doing" can be the domain of techne, practical skill, or even habit. "Understanding" reaches toward episteme, the why beneath the what. Teaching becomes a stress test: if you can guide someone else from confusion to clarity, your grasp is more than private intuition; it's structured.
Context matters, even if the attribution is famously shaky (the sentiment is often linked to later paraphrases and to a similar line in Taoist tradition). Still, it fits Aristotle's world: a culture building institutions of formal instruction, and a philosopher who tutored Alexander while systematizing logic, biology, ethics. The quote is also an early defense of intellectual labor. It implies that education isn't secondhand performance; it's generative power, the craft of making understanding contagious.
Quote Details
| Topic | Teaching |
|---|---|
| Source | Aristotle, Nicomachean Ethics, Book VI (discussion of intellectual virtues). Standard English translations (e.g., W.D. Ross) render the line as 'Those who know, do; those who understand, teach.' |
| Cite |
Citation Formats
APA Style (7th ed.)
Aristotle. (2026, January 15). Those that know, do. Those that understand, teach. FixQuotes. https://fixquotes.com/quotes/those-that-know-do-those-that-understand-teach-29258/
Chicago Style
Aristotle. "Those that know, do. Those that understand, teach." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/those-that-know-do-those-that-understand-teach-29258/.
MLA Style (9th ed.)
"Those that know, do. Those that understand, teach." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/those-that-know-do-those-that-understand-teach-29258/. Accessed 13 Feb. 2026.









