"Knowledge becomes evil if the aim be not virtuous"
About this Quote
The line carries a typically Platonic suspicion of mere skill. In Athens, rhetorical training could win court cases, move crowds, topple rivals; the Sophists sold that skillset as portable, value-agnostic advantage. Plato saw the danger: an intellect trained only to persuade or to optimize can become a high-performance engine for appetite, status, and domination. The subtext is an attack on the idea that knowledge automatically improves people. If the soul is mis-aimed, more knowledge just makes it more effective at getting what it wants.
That framing also fits Plato's deeper architecture: the Good is the sun that makes all other knowing meaningful. Without it, what looks like "knowledge" degrades into cunning (metis) or manipulation, a counterfeit wisdom that can mimic truth while serving a corrupt end. The quote works rhetorically because it reverses a comforting modern premise: education is inherently progressive. Plato insists that pedagogy without ethics is incomplete, even dangerous.
In context, it's less anti-intellectual than anti-instrumental. He is arguing for the inseparability of epistemology and character: what you know matters, but what you are aiming at decides whether that knowing heals a city or hollows it out.
Quote Details
| Topic | Ethics & Morality |
|---|---|
| Source | Help us find the source |
| Cite |
Citation Formats
APA Style (7th ed.)
Plato. (2026, January 15). Knowledge becomes evil if the aim be not virtuous. FixQuotes. https://fixquotes.com/quotes/knowledge-becomes-evil-if-the-aim-be-not-virtuous-36299/
Chicago Style
Plato. "Knowledge becomes evil if the aim be not virtuous." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/knowledge-becomes-evil-if-the-aim-be-not-virtuous-36299/.
MLA Style (9th ed.)
"Knowledge becomes evil if the aim be not virtuous." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/knowledge-becomes-evil-if-the-aim-be-not-virtuous-36299/. Accessed 12 Feb. 2026.












