Why Does the Shōninki Tell the Listener to Appear Foolish?

A fresh translation

Original text

Words and concepts

• 理を尽くさする (ri o tsukusasuru)
  To have another person develop or exhaust his reasoning. The causative form places the speaking with the other person.
• 賢くする (kashikoku suru)
  To treat or present someone as wise. The line concerns a conversational position, not proof of permanent wisdom.
• うつけ (utsuke)
  A fool, simpleton, or dull person. Here the self deliberately occupies that visible role.
• 習い (narai)
  An instruction or practiced teaching. The heading introduces a lesson that the following sentences expand.

A conversation built around display

The passage does not begin with a question to be asked. It begins with the distribution of appearances. The other person is to occupy the position of the clever speaker, while the observer relinquishes it. That imbalance gives the section its shape.

In ordinary debate, speakers often protect their status by answering quickly, correcting errors, and making their own knowledge visible. The Shōninki reverses that impulse. If the observer displays superiority, the other person may stop, defend a claim, or become cautious. A foolish appearance leaves more room for the other voice.

The text is therefore interested in speech before it is interested in any particular secret. It describes a condition under which another person continues talking. The heading’s causative grammar matters: the observer does not “exhaust the reasoning” personally. He allows or induces the other person to do so.

Why foolishness is a role rather than a judgment

The two lines do not call the practitioner intellectually deficient. “Oneself becomes a fool” names an outward part within an encounter. The contrast depends on someone who can judge the exchange while avoiding the visible signs of judgment.

This is not humility in the devotional sense, and it is not an argument that ignorance is virtuous. The following teaching belongs to a manual concerned with gathering knowledge while concealing purpose. The foolish role is valuable because it lowers the apparent threat presented by the listener.

The other person is likewise not declared truly wise. He is “made wise” within the conversation. The wording draws attention to position and recognition: one person receives the flattering place, and one person abandons it.

The Middle Scroll’s social field

The Shōninki survives in three scrolls. The First Scroll is well known for outward preparation, disguises, and six portable implements. The Middle Scroll turns repeatedly toward encounters with people, local conditions, speech, and judgment. This excerpt belongs to that social field.

Its setting is important because popular descriptions of ninjutsu often isolate physical entry from everything that comes before it. The Middle Scroll records another kind of access. A house, road, or boundary may be watched with the eyes. A person’s understanding cannot be inspected in the same way. It must become audible through conversation.

The text does not provide a transcript of an actual exchange. No named informant appears. No place or campaign is identified. We are reading a prescription for conduct, not a report proving that the method produced reliable information.

Information without the posture of interrogation

Direct questioning exposes the subject that matters to the questioner. It can also announce suspicion. The opening lines offer a different posture: let the other person be the one who appears to know and explain.

That difference separates the passage from a simple list of clever questions. The observer’s first task is not verbal ingenuity. It is control over self-presentation. To appear knowledgeable may satisfy pride, but it also tells the other person what the listener understands and wants.

Later wording in the section develops the danger of appearing clever and the value of letting another person take satisfaction in explaining. Those continuations clarify the opening contrast, but the two quoted lines already contain its governing relation: displayed intelligence moves away from the observer.

A manuscript lesson, not modern psychology

It would be easy to convert the passage into contemporary advice about negotiation, interviewing, or friendship. That move erases the historical purpose stated by the work. The Shōninki is describing concealed inquiry within a tradition of shinobi instruction.

The text also lacks the evidence needed for a universal claim about human behavior. It does not count conversations, compare outcomes, or distinguish personality types. A seventeenth-century prescription should not be presented as an experimentally established law.

Historical reading can still identify the model of interaction. The compiler assumes that visible cleverness can obstruct the flow of another person’s speech. He therefore assigns the listener a socially diminished role. That is a claim about conduct within this manual, not a promise that the same performance always works.

What a transmission text leaves unwritten

The heading calls the lesson a narai, a teaching or practice. Its concise definition resembles a mnemonic rather than a complete dialogue manual. Readers receive a relation between two roles, but not a script covering every response.

This economy is characteristic of material embedded in transmission. Written words can name the principle. Judgment about timing, credibility, and danger remains difficult to reduce to a line. The text’s brevity should not invite us to invent missing procedures.

The surviving witness also deserves caution. The manuscript used here was copied in 1743, decades after the work’s stated date of 1681. It preserves the lesson but does not let us watch the first act of composition. Spelling, punctuation, and section division in modern transcriptions can differ from the manuscript page.

Concealing knowledge rather than concealing the face

The passage broadens the ordinary visual sense of concealment. A person may wear no mask and still withhold an important part of his identity: what he knows, what he has noticed, and why he is listening. The chosen performance concerns intellect rather than clothing.

This form of concealment is relational. A hat can cover the same face regardless of who looks at it. Appearing foolish, by contrast, depends on another person accepting the role offered in the conversation. The technique exists only inside an exchange of recognition.

That dependence also makes the instruction uncertain. The other person may distrust exaggerated dullness, refuse to speak, or misunderstand the listener. The manual does not discuss those failures in the two quoted lines. It states the preferred arrangement, not a mechanical cause guaranteed to produce disclosure.

Reading the words this way keeps the focus on the work’s own categories. The First Scroll’s equipment can manage outward appearance. The Middle Scroll asks how conduct manages what another person infers. Both concern concealment, but they operate through different materials.

Limits of the two-line excerpt

The passage does not prove that every historical shinobi used this approach. It does not identify a specific region in which the practice succeeded, and it offers no independent testimony from a person subjected to it. A teaching in a manual is evidence for the manual’s ideal of conduct.

Nor should “fool” be expanded into a fixed disguise or personality. The contrast describes the arrangement of one conversation. The observer yields the conspicuous claim to wisdom so that the other person will occupy it.

Within those limits, the opening is precise. Intelligence is not collected only by seeing more. It may depend on being seen as less. The Shōninki places concealment not merely on the body or equipment, but on the listener’s visible intelligence.

Source

Shōninki (正忍記), Middle Scroll (中巻・地), “Instruction on Letting Another Person State His Reasoning Fully” (人に理を尽くさする習いの事), heading and opening definition. The passage appears in the National Diet Library manuscript, image 20, copied by Watanabe Rokurōzaemon in Kanpō 3 (1743). The NDL Search record identifies Natori Masatake as author and marks the digital witness as public-domain material. The National Diet Library’s guide to the three major ninjutsu manuals describes the work’s 1681 date and three-scroll structure.