KNOW thyself

Meaning & Analysis

An imperative statement urging an individual to gain a deep and honest understanding of their own character, motivations, abilities, and limitations.

Insights

Foundation of Moral Virtue

The proverb serves as a foundational principle for moral conduct. Understanding one's own biases, weaknesses, and capacity for error is essential for making just, empathetic, and ethical decisions.

Realization of Potential

Self-knowledge is presented as the key to unlocking one's true potential. By understanding one's unique strengths and weaknesses, a person can better navigate life, choose a suitable path, and achieve fulfillment.

A Mandate for Humility

The proverb is a call for intellectual and social humility. Recognizing the limits of one's own knowledge and the flaws in one's own character counteracts pride and arrogance, fostering a more grounded and realistic worldview.

Key to Social Understanding

It functions as a guide to social harmony. By understanding oneself, one can better understand others, manage interpersonal relationships, and recognize one's appropriate role within a community or social structure.

Ancient Philosophical Roots

Originating as a primary maxim inscribed at the Temple of Apollo at Delphi, this proverb is a cornerstone of Western philosophy, central to the Socratic method, which posits that an unexamined life is not worth living. Its classical authority is frequently cited in the provided quotations.

Renaissance Humanist Ideal

The proverb was revitalized during the Renaissance, embraced by humanists like Erasmus. It shifted focus from purely divine authority to the importance of human reason, introspection, and understanding one's own capabilities and limitations as a path to wisdom, as seen in the quotes from Frith and Ascham.

Literary and Dramatic Significance

Shakespeare extensively explores this theme, often portraying the tragic consequences of a lack of self-knowledge, most notably in 'King Lear', whose downfall is precipitated by his failure to 'slenderly know himself'. This illustrates the proverb's deep integration into early modern psychological and dramatic narratives.

Psychological Imperative

The injunction to 'know thyself' is a precursor to modern psychological concepts such as introspection, self-awareness, and emotional intelligence. It underscores that understanding one's own motivations, biases, and emotional states is fundamental to mental health and effective functioning.

Rhetorical Devices

Imperative Mood

The proverb is phrased as a direct command (an imperative), giving it a powerful, authoritative, and urgent tone. It is not an observation but a direct instruction for living.

Aphorism

As a concise, memorable statement expressing a profound philosophical truth, it functions as a classic aphorism. Its brevity makes it impactful and easy to recall.

Philosophical Abstraction

The proverb's use of abstract concepts ('know', 'thyself') rather than concrete imagery gives it a universal and timeless philosophical weight, applicable across any context.

self-awarenessphilosophyintrospectionwisdomhumilityidentity
Analyzed with gemini-2.5-pro on August 6, 2025

Transcription

Quotations

Nosce teipsum.

— Erasmus, Adagia 258D

Late euery man knowe hym self that is my counseyl.

1481, CAXTON, Reynard, 29, p. 73

The philosophers . . acknowledged that the chief point of wisdom and direction of a man's life, was to know himself.

1533, FRITH, Mirr. to Know Thyself: Writings, p. 18

Knowe thy selfe. Plato ascribeth thys diuine sentence vnto Apollo.

1539, TAV., f. 20

That wise prouerbe of Apollo, Knowe thy selfe: that is to saye, learne to knowe what thou arte able, fitte, and apt vnto, and folowe that.

1545, ASCHAM, Tox., p. 155

To know himselfe well, is the greatest knowledge that one can haue, or wish for.

1596, DEL., s. P3V

Learn Solons saying, Mortall, know thy selfe.

1616, R.C., Times' Whistle, l. 1120, p. 38

For a man to know himself is the most worthy knowledge.

1618, [MARSTON OR CAMPION], Mountebank's Masque, p. 432

So shall he know him-self and be lesse proud.

1633, Costly Whore, IV i, p. 275

With all thy knowledge know thy self.

1659, HOW., Eng. Prov. into Fr. It. Span., p. 9

The hardest thing that is, is to know ones self.

1666, TOR., It. Prov., 27, p. 50

To which these two Precepts are a most diuine motive, Know thy self, and Reuerence thy self.

1682, NORRIS, Gold. Verses Pythag., p. 42

Shakespeare Citations

Before I know myself, seek not to know me.

Ven, 525

And such a want-wit sadness makes of me That I have much ado to know myself.

MV, I.i

But, mistress, know yourself. Down on your knees, And thank heaven, fasting, for a good man's love.

AYL, III.v

I dare not confess that, lest I should compare with him in excellence; but to know a man well were to know himself.

Ham, V.ii

Then if you know That you are well acquainted with yourself, Confess 'twas hers.

AWW, V.iii

Yet he hath ever but slenderly known himself.

KL, I.i

And the remainder [of Lear's men] that shall still depend To be such men as may besort your age, Which know themselves, and you.

KL, I.iv

The which [helps] you both denied. —Neglected rather; And then when poisoned hours had bound me up From mine own knowledge.

Ant, II.ii

You know neither me, yourselves, nor anything.

Cor, II.i

The King will know him one day. —Pray God he do! He'll never know himself else.

H8, II.ii

Cross References

Original Scan

KNOW thyself - a scanned entry from Tilley's 1950 Dictionary of Proverbs.
Scan courtesy of HathiTrust Digital Library.
Used under CC BY-NC 3.0.

© 2026 TilleyProverbs.com · About

Last updated: January 27, 2026