In the wise MAN's mouth what is public (manifest) is secret

Meaning & Analysis

A wise person treats even publicly known information with the same care and discretion as a secret, refraining from repeating it carelessly.

Insights

The Power of Discretion

The proverb is a metaphor for the power of discretion, suggesting that true wisdom lies not in what one knows, but in understanding when and what to communicate. The wise person's silence can de-escalate rumors and contain the impact of potentially harmful information.

Transformation of Knowledge

It illustrates that a wise individual transforms the nature of information. By refusing to gossip or spread public knowledge, they effectively render it inert or 'secret' again, preventing its use for malicious or trivial purposes.

Integrity and Trustworthiness

The proverb defines a key characteristic of trustworthiness. A wise person's mouth is a symbolic vault; information that enters, whether private or public, is secured by prudence, making them a reliable and sought-after confidant.

The Politics of Information

The proverb reflects the high value placed on discreet counsel in political and courtly life, where a wise advisor's role is not merely to possess information but to strategically manage its dissemination, understanding that even public knowledge can be weaponized or cause unrest if spoken carelessly.

Wisdom as Impulse Control

Psychologically, the proverb highlights the importance of impulse control. An unwise person may spread information for social validation or without forethought, whereas a wise individual processes knowledge, weighs the consequences of speaking, and often chooses silence as the most prudent course of action.

Critique of Gossip Culture

In an era dominated by social media and the rapid, often reckless, sharing of information, the proverb serves as a powerful counter-cultural reminder of the virtue of informational stewardship and the ethical responsibility that comes with knowledge.

Rhetorical Devices

Paradox

The proverb is built on a striking paradox: the idea that something can be simultaneously 'public' and 'secret'. This logical contradiction captures attention and forces a deeper reflection on the nature of wisdom and speech.

Antithesis

A strong antithesis between 'public' and 'secret' serves as the core structure, highlighting the transformative power of the wise person's discretion in handling information.

Metaphor

The 'wise man's mouth' serves as a metaphor for a secure place or a locked container, contrasting sharply with the proverbial 'fool's mouth,' which is often depicted as an open sieve that cannot hold anything.

wisdomdiscretionsecrecyprudencespeechtrust
Analyzed with gemini-2.5-pro on September 2, 2025

Transcription

Quotations

In the wisemans mouth, That is manifest is kept secret.

1599, MINSHEU, Span. Gram., p. 83

Locke thy counsels in the bosome of a discreet friend, for in a wise mans mouth, that which is manifest, is kept secret.

c1640, W.S., Countrym. Commonw., p. 20

In a discreet mans mouth a publick thing is private.

1659, HOW., It. Prov., p. 12
1659, HOW., Span. Prov., p. 3

Original Scan

In the wise MAN's mouth what is public (manifest) is secret - a scanned entry from Tilley's 1950 Dictionary of Proverbs.
Scan courtesy of HathiTrust Digital Library.
Used under CC BY-NC 3.0.

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Last updated: January 27, 2026