Questions on the Metaphysics

Quick Facts

• Title: Questions on the Metaphysics
• Full Latin title: Quaestiones super libros Metaphysicorum Aristotelis
• Author: John Duns Scotus
• Date: uncertain; usually treated as part of Scotus's university work before or around the period of his major Sentences commentaries
• Form: scholastic questions on Aristotle's Metaphysics, books I-IX
• Main topics: being, substance, causality, metaphysics as a science, individuation, and God's place in first philosophy
• Main labels: Scholasticism, Franciscan philosophy, Aristotelianism, metaphysics

The Problem

Aristotle's Metaphysics creates a famous headache. It says first philosophy studies "being as being," meaning reality in the most general way. But it also seems to study the highest divine substance. So what is metaphysics really about? Is it about all beings, just because they are beings? Or is it mainly about God and the highest causes?

Scotus takes that problem seriously. His Questions on the Metaphysics is not a beginner textbook where he simply explains Aristotle line by line. It is a set of disputed questions. A question begins with objections, tests different answers, then works toward a solution. The point is not just "what did Aristotle say?" The point is "can Aristotle's metaphysics actually work as a science, and what has to be fixed or sharpened for it to work?"

The big problem underneath the work is this: if metaphysics is the widest science, it needs a subject broad enough to include substances, accidents, causes, possible beings, finite creatures, and God. But if the subject becomes too broad, it risks becoming empty. If "being" means everything, does it explain anything? Scotus tries to keep the idea broad without making it useless.

In One Minute

Questions on the Metaphysics is Scotus doing hard metaphysics in conversation with Aristotle. He asks what metaphysics studies, how substances and accidents fit together, how causes work, and what makes one individual thing this thing instead of another copy of the same kind.

The book matters because it shows Scotus inside the Aristotelian classroom but already pushing past a simple Aristotelian answer. Aristotle gives him the basic vocabulary: being, substance, cause, act, potency, form, matter, and first philosophy. Scotus then makes the vocabulary sharper. He wants metaphysics to be a real science of being, not just a pile of comments on old texts.

This is also an important companion to the Ordinatio. The Ordinatio is the bigger theological work where Scotus's famous doctrines are more central: univocity of being, formal distinction, haecceity, divine freedom, and God's infinity. The Questions on the Metaphysics shows the philosophical workshop behind that later toolkit.

The Main Argument

The main argument is not one straight line from chapter one to the end. The work is built from questions. Still, the project has a clear direction: Scotus wants to know whether metaphysics can study reality at the broadest level and still make exact claims.

Start with "being as being." This phrase means that metaphysics does not study trees as living things, bodies as moving things, or triangles as mathematical things. It studies whatever is real insofar as it is real. That sounds abstract, but the idea is easy enough. Biology asks what makes an oak tree alive. Physics asks how the oak moves, grows, and changes. Metaphysics asks more basic questions: What does it mean for the oak to be a substance? What does it mean for its greenness or height to be properties? What does it mean for anything to depend on a cause?

Scotus accepts that this wide science matters. But he also sees the tension in Aristotle. Aristotle often says metaphysics studies being in general, but he also says first philosophy studies divine, separate, unchanging substance. Scotus does not want to lose either side. Metaphysics needs to reach God, because God is the first cause and highest being. But it cannot begin only with God, because human reason does not start with a direct view of God. We start with created things and work upward. So metaphysics has to study being broadly enough that both creatures and God can come into view.

That is why the concept of being becomes so important for Scotus. If the word "being" has no stable meaning, metaphysics cannot be a science. Suppose "being" means one thing for a horse, another totally unrelated thing for an angel, and another totally unrelated thing for God. Then arguments would slide around on wordplay. Scotus's famous mature answer is the univocity of being: the concept of being has one basic meaning, even though God and creatures have being in radically different ways. In the Questions on the Metaphysics, the story is messier than in the Ordinatio. Scholars debate how Scotus's treatment of univocity in this work fits with his more famous later statements. But the pressure is already clear: metaphysics needs a common conceptual handle for reality.

Scotus also uses the work to rethink substance. A substance is something that exists in its own right, like a person, a horse, or a stone. An accident is something that exists in a substance, like color, size, posture, or location. Your body can become tan, tired, seated, or taller without becoming a different substance. Those are accidental changes. But if a living organism dies, or if materials are organized into a new thing, the change is deeper. Scotus inherits this Aristotelian language, then asks how it really works.

The question of individuation is one of the most important parts. Aristotle often treats matter as what makes two members of the same kind numerically different. Socrates and Callias are both human, but they are different parcels of matter. Scotus is not satisfied with that as the whole story. He asks what finally makes this individual this one. If two things share a common nature, what explains the final "this one here" of each? Scotus's answer becomes haecceity, or thisness. In the Questions on the Metaphysics, this appears in the discussion of individuation: an individual has a final individuating reality that contracts a common nature into this concrete thing.

That sounds technical, but the point is normal. Two printed copies of the same book may have the same title, same words, same cover, and same layout. They are still two copies, not one copy. Scotus wants a metaphysical account of that final difference. Shared features do not explain numerical individuality. Matter and location help, but Scotus wants the deepest explanation of why this individual is this individual.

Causality is another central theme. Aristotle's metaphysics studies causes, not just events. A cause is an explanation for why something is the way it is. A statue has a material cause, the bronze; a formal cause, the shape; an efficient cause, the sculptor; and a final cause, the purpose or end. Scotus inherits this causal language but presses it toward dependence. If a being depends on another, what kind of dependence is that? Is it dependence for coming into existence, for continuing to exist, for being intelligible, or for reaching an end? These questions matter because Scotus's natural theology depends on causal reasoning. To argue toward God, he needs a careful account of caused beings and first causes.

So the work's basic teaching is this: metaphysics is not just fancy vocabulary about invisible stuff. It is the discipline that asks what any real thing must have in order to be real, one, caused, individual, and intelligible. Scotus uses Aristotle as the starting map, but he keeps redrawing the map where Aristotle's language is not sharp enough.

Key Ideas With Examples

• Being as being: reality considered in the most general way. Example: a doctor studies a human body as healthy or sick; a physicist studies it as matter in motion; a metaphysician asks what it means for the body to be a substance with properties and causes.

• First philosophy: Aristotle's name for the highest science. It is "first" because it asks the deepest questions, not because you should read it first. Example: chemistry can explain how wood burns, but first philosophy asks what a cause is and what kind of reality a changing substance has.

• Substance: something that exists in its own right rather than in something else. Example: a person is a substance. The person's height, color, mood, and posture are not separate substances; they are features of that person.

• Accident: a feature that exists in a substance and can change without destroying the substance. Example: if a wall is painted blue and then white, the wall remains the same wall. Its color changed; the substance did not become a new kind of thing.

• Causality: the different ways something explains another thing. Example: a chair exists because of wood, a design, a carpenter, and a purpose. These are not four rival answers. They are different kinds of explanation.

• Being qua being: "qua" means "as." So "being qua being" means "being as being." Example: to study a dog as an animal is biology. To study the dog as a being is metaphysics: it exists, it is one thing, it has properties, it depends on causes, and it can be understood.

• Transcendentals: features that apply across all categories of being, such as one, true, and good. Example: a stone, a person, a number in the mind, and an angel are very different. But if each is a being in some way, each can also be considered as one, intelligible, and good in some respect.

• Univocity of being: the idea that "being" has one basic conceptual meaning when applied to God and creatures. Example: "God exists" and "a tree exists" do not mean God and the tree are the same kind of thing. They mean the concept of existence is stable enough that the comparison is not nonsense.

• Analogy: using one term in related but different senses. Example: "healthy" can describe a person, food, and a medical test. The food is not healthy in the same way the person is, but the meanings are connected. Scotus is often read against thinkers who make God-talk mainly analogical.

• Common nature: the shared "what-it-is" found in many individuals. Example: Peter and Paul are both human. Human nature is common to both, but it never walks around as a separate object. It exists in individual humans.

• Individuation: what makes one member of a kind this individual. Example: two coins from the same mint may look the same and share the same kind, but they are still two coins. Scotus thinks individuality needs a real principle, not just a label we slap on things.

• Haecceity: "thisness," Scotus's name for the final individuating principle. Example: if two people were identical in every visible trait, they would still be two people. Haecceity names the final reality by which each is this person.

• Act and potency: a way to talk about what is actual now and what can become actual. Example: an acorn is actually an acorn and potentially an oak tree. Metaphysics asks how real possibilities relate to actual things.

Why It Matters

This work matters because it shows Scotus as a philosopher, not only as a theologian. The Ordinatio is tied to theology and Peter Lombard's Sentences. The Questions on the Metaphysics puts Scotus directly inside the Aristotelian philosophy curriculum. He is asking what a science of reality can look like.

It matters for understanding Scotus's famous doctrines. If you only read short summaries, Scotus can sound like a list of weird terms: univocity, haecceity, formal distinction. This work shows why those terms exist. They are tools for actual problems. Univocity helps metaphysics speak broadly without losing meaning. Haecceity helps explain individuality. Distinctions help describe real structure without chopping reality into too many separate things.

It also matters because later scholastic philosophy keeps wrestling with the same issues. Thomas Aquinas, Scotus, William of Ockham, and later Francisco Suarez all care about being, substance, causes, and God. But they draw the map differently. Scotus's version gives later thinkers a more precise and often more crowded map.

For this wiki, the page is a bridge. Read Aristotle to get the base vocabulary. Read Questions on the Metaphysics to see Scotus sharpen that vocabulary. Read the Ordinatio to see the mature theological and metaphysical system that grows out of it.

Proponents, Critics, and Opponents

The main background figure is Aristotle. Scotus accepts Aristotle's basic project: metaphysics studies being, substance, causes, and first principles. But he does not treat Aristotle as untouchable. He uses scholastic questioning to pressure-test Aristotle's claims.

Ibn Sina is another important background influence, especially for medieval debates about being, essence, necessity, and God. Scotus works in a Latin world where Aristotle had already been filtered through Arabic and Islamic philosophy as well as Christian commentary.

Thomas Aquinas is the major comparison point. Aquinas also builds Christian metaphysics from Aristotle, but he usually explains God-talk through analogy and gives different answers on individuation. Scotus's sharper account of being and thisness becomes one of the main alternatives to Thomism.

William of Ockham later pushes back against Scotist metaphysical machinery. Ockham tends to simplify. Where Scotus finds real distinctions and individuating structures, Ockham often asks whether we actually need all that furniture.

Later Scotists treat Scotus as a master and use this work as part of the source base for his metaphysics. Later critics sometimes complain that Scotus makes metaphysics too technical. That complaint is understandable. But the technicality has a reason: Scotus thinks vague words produce fake solutions.

Related Pages

• John Duns Scotus
• Aristotle
• Thomas Aquinas
• Ibn Sina
• William of Ockham
• Francisco Suarez
• Scholasticism
• Aristotelianism
• Ordinatio
• Quodlibetal Questions
• Metaphysical Disputations