How to Read “Fill a hole in the wall with wall”
Kabe no ana wa kabe de fusage
Meaning of “Fill a hole in the wall with wall”
This proverb teaches that when a problem occurs, you should solve it using a method that matches the nature of the problem.
Just as filling a hole in a wall with wall material makes the most sense, each problem has an appropriate solution that fits its specific nature.
People use this saying when advising someone who is trying to solve a problem the wrong way. It also serves as a guide when thinking through solutions yourself.
For example, it warns against mismatched approaches. These include trying to fix relationship troubles with money or attempting to overcome technical problems with motivational speeches.
In modern times, we often prioritize efficiency and convenience over fundamental solutions. We tend to put off dealing with the root cause.
However, this proverb reminds us of something important. We should face the core of the problem, understand its nature, and choose the right method rather than just treating the surface.
Origin and Etymology
The exact first appearance of this proverb in literature is difficult to confirm. However, based on its structure, scholars believe it came from Japanese craftsman culture and practical work experience.
When a hole appears in a wall, how do you repair it? You could fill it with wood or cover it with cloth.
But the most sensible method is to fill it with the same material as the wall. If it’s an earthen wall, use earth. If it’s plaster, use plaster.
This way, both the strength and appearance come close to the original condition.
From this simple fact, people derived a fundamental principle of problem-solving. When a problem occurs, it’s important to identify its nature and address it with an appropriate method.
You can use different materials as a temporary fix, but that won’t be a fundamental solution.
In construction and repair work, understanding material properties and using the right material in the right place was where craftsmen showed their skill.
Filling a hole in a wall with wall material wasn’t just a repair technique. It became a symbol of broader wisdom about seeing the essence of problems and choosing the best solution.
Words born from such practical experience eventually came to be used as guidance for solving problems in life generally.
Usage Examples
- Trying to overcome system bugs by adding more staff won’t work. As they say, fill a hole in the wall with wall—technical problems need technical solutions
- Changing the rules won’t help when the real cause is poor communication. Fill a hole in the wall with wall, you know
Universal Wisdom
Humans have a tendency to try solving problems with whatever tools or methods are close at hand.
When we’re in a hurry, feeling anxious, or when identifying the real issue seems too troublesome, we jump at “quick fix” solutions.
However, such temporary measures often develop cracks over time. Eventually, they can cause even bigger problems.
This proverb has been passed down through generations because it sees through this human tendency.
Identifying the essence of a problem sometimes requires courage. It means facing the solution the problem truly needs, not the solution that’s convenient for us.
Filling a hole in a wall with wood might be easy. But that won’t restore the wall’s function.
Similarly, life’s problems require us to address them the right way, not the easy way.
Our ancestors found deep truth about life in this simple repair principle.
It’s about the importance of sincerity—facing problems honestly, understanding their nature, and choosing appropriate methods.
In our modern age that pursues convenience and efficiency, this fundamental wisdom shines even brighter.
When AI Hears This
The idea of “repairing with the same thing” in this proverb is actually what systems engineering warns against as the “same-type solution trap.”
Filling a hole in a wall with wall material seems rational on the surface. But it doesn’t address the root cause of why the hole appeared in the first place.
In systems thinking, searching for solutions at the same level where the problem occurred preserves the very structure that created the problem.
For example, when you add more roads to solve traffic congestion, it improves temporarily. But a phenomenon called induced demand occurs, the number of cars increases, and eventually congestion returns.
This is known as the Downs-Thomson Paradox, discovered by Anthony Downs in the 1960s.
The same applies to holes in walls. If moisture is the cause, it’s a ventilation system problem. If impact is the cause, it might be a placement issue.
But the act of filling with wall material conceals these root causes. It only buys time until the next hole appears.
Looking at the whole system, the problem isn’t solved. Worse, you’ve lost the opportunity to investigate the cause.
Climate change responses show the same structure. When fossil fuel companies promote carbon capture technology, they’re using a “same-type solution.”
Capturing emitted carbon with technology without changing the energy system itself preserves the fundamental problem of fossil fuel dependence.
Lessons for Today
Modern society creates the illusion that universal solutions exist for every problem. However, this proverb sounds an alarm against such simplistic thinking.
If you’re facing a problem right now, stop and think. What is the essence of that problem?
Is it a relationship issue, a technical problem, or something within yourself? Identifying the nature of the problem is the first step toward solving it.
We tend to try solving problems with methods we’re good at or familiar with.
But if those don’t match the nature of the problem, no amount of effort will be truly effective.
Sometimes you need the courage to step away from your areas of expertise. You must choose the solution the problem truly needs.
What this proverb teaches us is the importance of sincerity. Don’t settle for surface-level fixes.
Face the essence of the problem and choose the appropriate method. It may seem like a detour at times, but ultimately it’s the most reliable path.


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