The Organon for an Age of Noise Part 2/8
Categories — The Architecture of Being
“Of things themselves some are predicable of a subject, and others are in a subject.”
— Categories, Aristotle
Imagine trying to run a society—or even have a conversation—without agreement on what kinds of things exist.
What’s a person?
What’s a right?
What’s a woman?
What’s a cause, a condition, an action, a state?
If we don’t share a framework for what can be said to exist, we can’t reason, we can’t argue honestly, and we certainly can’t legislate well.
That’s why Aristotle begins his logical system with Categories. It’s not a book about grammar or vocabulary. It’s a map of reality—a classification of all the different ways something can “be.”
In this entry, we’ll walk through the core structure of Aristotle’s Categories, explore what he means by substance and the nine modes that depend on it, and then show how this 2,000-year-old system helps us deal with modern issues—from gender debates to tech regulation to the way journalists frame stories.
What Is Categories?
Categories is the first book of the Organon. It asks a fundamental question:
In what different ways do we say that something “is”?
Not just “what exists,” but how it exists. When we make a claim—like “This law is unjust” or “She is running”—we are predicating, or affirming, something of a subject. Aristotle wants to know: what kinds of things are we predicating?
He identifies ten categories—ten distinct types of predication, ten different ways something can be:
Substance – what a thing is
Quantity – how much or how many
Quality – what kind of thing it is
Relation – in reference to what
Place – where
Time – when
Position – posture or arrangement
State – condition or configuration
Action – what it is doing
Passion – what is being done to it
These aren’t arbitrary. Aristotle observed that all assertions—whether in daily life, science, law, or philosophy—fall into these categories. This is a universal framework for predication.
The Most Important: Substance
At the heart of it all is substance (ousia in Greek). Substance is what exists in itself—not in or of something else.
“Substance is that which is neither said of a subject nor in a subject.”
— Categories
Think of:
A man
A horse
A chair
These are primary substances. They are individual, concrete, and don’t rely on anything else to be what they are.
Then there are secondary substances: species and genera. For example:
“Man” is a species.
“Animal” is a genus.
These can be said of a subject, but they still refer to what something is, not how it is.
Everything else—qualities, actions, states, etc.—depends on substance. You can’t have “running” without someone who’s running. You can’t have “blue” without something that is blue.
So Aristotle is saying: being starts with things, and only then do we describe them with other kinds of predicates.
The Other Nine Categories Explained
Let’s look briefly at the other nine categories—with examples.
1. Quantity
How much or how many.
“Six feet tall”
“Three gallons”
“Twenty years old”
2. Quality
What kind of thing it is.
“Brave”
“Sweet”
“Circular”
“Jealous”
3. Relation
In comparison to something else.
“Father of X”
“Taller than Y”
“Double the size”
4. Place
Where it is.
“In the city”
“On the table”
5. Time
When it is.
“Yesterday”
“At midnight”
6. Position
Arrangement or posture.
“Sitting”
“Kneeling”
7. State
Condition or possession.
“Armed”
“Shod”
“Ready”
8. Action
What it is doing.
“Cutting”
“Speaking”
9. Passion
What is being done to it.
“Being struck”
“Being heated”
With these ten categories, Aristotle gives us a language of being that is both precise and flexible. Every meaningful sentence we form depends on combining these categories in logical ways.
Why This Matters in 2025
1. Modern Conflicts Over Identity
Take gender and biological sex debates in 2025. Many of the arguments are not about data—they’re about categorization.
If someone says, “Gender is a social construct,” they are relocating gender from the category of substance to relation or state. This is illogical. If another person insists gender is biological, they’re treating it as a quality of a substance.
They’re not just disagreeing—they’re speaking in different categorical frameworks. Without understanding that, the debate turns into a shouting match.
Relocating gender to an accidental category like relation or state would mean treating it as non-essential. In the category of relation, gender could be seen as a social construct defined relative to others (e.g., non-binary as “neither male nor female” in relation to cultural norms), but Aristotle would likely reject this as unnatural, since relations depend on substances, and substances like humans are fundamentally male or female for reproductive purposes.
Alternatively, treating gender as a state—a temporary condition like being dressed or healthy—could account for fluidity, but it demotes gender to a fleeting accident, not a core identity. Aristotle’s rigid binary, grounded in natural purpose, would dismiss multiple genders as a logical error, insisting that only two, tied to substance, align with reality.
Aristotle helps us slow down and ask:
What are we claiming exists?
What category are we using when we say “is”?
Only then can we begin to understand or challenge a claim logically.
2. AI and the Status of Digital “Agents”
What kind of thing is ChatGPT? Or an autonomous drone? Or a predictive policing algorithm?
Is it:
A substance?
A state?
A cause?
Is it acting or being acted upon?
These questions aren’t just philosophical—they’re legal and political. We’re rapidly entering a world where personhood, agency, and rights will be extended—or denied—based on how we categorize non-human intelligences.
Aristotle reminds us: if we skip this groundwork, we build policies on sand.
3. Media Narratives and Misleading Categories
News outlets often switch categories mid-sentence for rhetorical effect.
Example:
“The city is violent.”
(Is “the city” a substance? Is violence a quality? A state? An action?)“This politician is a threat.”
(A relation? A quality? An action?)
By naming things ambiguously, speakers can assert serious claims without backing them up. The categories are blurred on purpose. In order to diagnose and address an issue, we must be direct and specific, while placing things in their proper categories.
In political discourse, correctly applying Categories cuts through ambiguity, grounding debates in essential realities and enabling precise solutions. Misapplying categories, however, obscures truth, as when identity politics elevates fluid attributes from relation to substance, fostering divisive rhetoric that masks shared human essence and buries root issues under misclassified abstractions, allowing sophistry to derail rational diagnosis and effective action.
And once you spot it, you can challenge it.
The Danger of Getting Categories Wrong
When we confuse or collapse categories:
We mistake feelings for facts.
We treat temporary states as essential substances.
We legislate based on impressions, not definitions.
This happens constantly in public discourse.
A protest or Constitutional legal processes become “attacks on democracy” because someone shifts “action” into the category of “substance.” A feeling of offense is elevated to an objective wrong by confusing “passion” with “quality.”
Without clear categories, everything becomes whatever anyone says it is. That’s not freedom of thought—it’s the death of thought.
How to Use This in Everyday Reasoning
Try these three steps when you hear a public claim:
1. Identify the Subject
What thing is being talked about? A person? An idea? A group? Is it a substance?
2. Identify the Predicate
What is being said about the subject? Is it a quality? A relation? An action?
3. Test the Coherence
Does that category make sense with that subject?
Is the speaker saying a “state” is a “quality”?
Are they acting as if a passing “passion” is a permanent trait?’
Here are two real-world examples.
Second Amendment Rights in Gun Control Debates
Subject: American citizens (a substance, as it denotes individual humans with inherent rights).
Predicate: “Have the right to bear arms” (asserting a legal and moral entitlement).
Test for Coherence: The predicate fits the category of quality, as the right to bear arms is an attribute of citizens, rooted in the Constitution’s Second Amendment, and is an essential protection against tyranny, citing historical intent. Coherence holds because this right is a stable, defining characteristic of free citizens, not a fleeting state or relation. Misclassifying it as a relation (e.g., “rights depend on government approval”) undermines the inherent nature of constitutional protections, muddling debates with anti-gun rhetoric that ignores the substance of individual liberty.
Federal Overreach in Education Policy
Subject: State governments (a substance, as they are distinct entities with sovereign powers).
Predicate: “Are over-regulated by federal mandates” (describing excessive control).
Test for Coherence: The predicate fits the category of state, as federal overreach, like the Department of Education mandates on curriculum standards, is a temporary condition imposed on states, not their essence. This violates the Tenth Amendment, which reserves education to states, as seen in Florida’s resistance to federal diversity initiatives. Coherence holds because state sovereignty is the substance, while overregulation is a changeable condition that can be addressed through legal challenges or policy reform. Misclassifying overreach as a quality (e.g., “states are inherently subordinate”) distorts their constitutional role, obscuring the truth of federalism and hindering efforts to restore local control.
Once you see how categories are used—or misused—you can take control of the conversation.
Key Takeaways
Categories is the foundation of logic. It gives us the vocabulary of reality.
All meaningful statements involve predicating one of ten categories onto a subject.
Substance is the anchor of being; everything else depends on it.
Misusing or confusing categories leads to muddled thinking, bad policy, and intellectual manipulation.
“Things are said to be in many ways.”
— Aristotle
And if we can’t distinguish those ways, we won’t be able to think clearly—much less argue honestly.
Next up: On Interpretation — How Language Expresses Truth and Falsehood