Too little
The cutting answer
“Perhaps try listening this time.”
Frustration is converted into an accusation without checking the difficulty.
Let frustration arrive without handing it the lesson.
The cultivated restraint of impulses that would cause needless harm.
Self-Restraint is the Teacher expression of Self-Command: governing an impulse so it does not decide conduct unchecked. Frustration is not a character failure. The choice is whether to let it become sarcasm, a retaliatory task, or a judgment about the learner.

You have explained the instruction three times. A fourth question arrives. Your mind produces a beautifully economical sentence that would make the room very quiet. Self-Restraint gives you a moment to consider what else that sentence would teach.
An illustrative everyday situation
A learner asks about an instruction just after you believe you have made it clear.
Too little
“Perhaps try listening this time.”
Frustration is converted into an accusation without checking the difficulty.
A fitting response
“Which part should we look at again?”
The teacher redirects the exchange toward information.
Pursued too far
“I must never admit that I need a pause.”
Trying to appear endlessly untroubled can prevent a necessary change of pace.
You can acknowledge a limit without making the learner responsible for your mood.
If conduct is deliberately disrupting others, set a clear, proportionate limit through the appropriate process. Restraint does not require abandoning the group’s needs.
A pause creates room to choose a question, restate a limit, or arrange a short break. It does not guarantee calm feelings or solve unreasonable working conditions.
A file will not open. You describe the next step instead of making the device’s failure the class’s fault.
You notice you have been pointing at the wrong diagram. You correct it and let the harmless absurdity ease the moment.
Gentleness shapes the response so it avoids needless harshness.
Discernment asks what the repeated question actually indicates before a judgment is made.
Treating any visible frustration as failure is a counterfeit of Self-Restraint. An honest, bounded pause can be a responsible choice.
Saving the sharpness for a later grade or task is not restraint. The impulse still governs the response, only on a slower schedule.
Notice your first impulse before choosing its wording.
Use a short, truthful pause when appropriate.
Return to the learning task or necessary limit without a personal attack.
Do not use deprivation, self-punishment or concealment of distress as practice. Preserve supervision where needed; unreasonable demands are not proof of deficient character.
In a low-stakes frustrating exchange, pause before answering and choose a concrete question or next step.
Pause before frustration turns into sarcasm.
What would my first reply teach besides the topic?
Do I need a better response, a boundary, or a change in workload?
Do not use deprivation, self-punishment or concealment of distress as practice. Preserve supervision where needed; unreasonable demands are not proof of deficient character.
About these practices · DisclaimerSeven selections to return to through the week. Follow a source link to read the surrounding passage.
When he is angry, he thinks of the difficulties (his anger may involve him in).
Confucius · Analects · XVI.10; Confucius speaking · James Legge translation · excerpt
Confucius asks what anger may set in motion. A sarcastic answer can teach fear of asking rather than the intended subject.
He who overcomes others is strong; he who overcomes himself is mighty.
Laozi · Tao Te Ching · 33.1 · James Legge translation · excerpt
Laozi turns strength toward governing oneself. This is not a demand to suppress feeling or deny the need for support.
I held my peace, and placed myself where I might observe quietly.
Montessori describes withholding an immediate response so she can observe. A pause can precede a better chosen intervention.
It is dangerous to seek to be always the leader of the conversation, and to push a good argument too hard, when we have found one.
La Rochefoucauld cautions against dominating conversation. Having a good point does not entitle the teacher to overwhelm the learner.
we should give them the time they want,
Leaving another speaker time is one concrete way to restrain the urge to finish their thought.
I’ve learned to check the hasty words that rise to my lips,
Louisa May Alcott · Little Women · chapter VIII, Jo Meets Apollyon; Mrs. March speaking · excerpt
Mrs. March describes checking hasty words in Alcott’s novel. Apply the small verbal choice, not a demand for faultless emotional control.
Speak not but what may benefit others or yourself; avoid trifling conversation.
Benjamin Franklin · Autobiography · Part II, plan of moral perfection; Silence · excerpt
Franklin’s rule turns attention toward the usefulness of speech. The application is to omit a cutting retort, not to ban harmless classroom play.
Read freely, follow the nineteen-virtue program, or adapt this collection in My Virtues. These practices concern your own choices, not a learner’s performance.