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Thinkers

John Duns Scotus

Scholastic · Europe · 1266 to 1308

Scottish friar who stressed the freedom of the will. He argued that "being" means the same thing when we say it of God and of creatures.

What it is

John Duns Scotus was one of the most influential philosophers and theologians of the High Middle Ages. Born around 1265 or 1266, he joined the Franciscans, studied and taught at Oxford and Paris, and died in 1308. He was known as the Subtle Doctor for the fine distinctions in his thinking.

He wrote on the existence of God, the way words apply to God and creatures, what makes a thing this individual thing, how we know, and the freedom of the will. His followers formed a school, called Scotism, that lasted for centuries.

The main ideas

  • This-ness. What makes an individual thing the particular thing it is, he proposed, is a principle often called haecceity, a kind of this-ness that is not just matter.
  • Univocity. He held that words like good or wise mean the same thing when said of God and of creatures, though God has them in an infinite way.
  • Will and freedom. He gave the will a high place and held that it is free in the sense that it can choose between opposites.
  • Direct knowledge. He criticised the view that we need a special divine light to know anything certainly, and held that the mind can know things directly, in what he called intuitive cognition.

What it looks like in practice

Picture someone who looks at two identical-looking coins and asks what makes one of them this coin and not the other. Scotus asked that kind of question, and answered that each thing has its own individuality that is more than its type. The question sounds small, but it bears on what a person is, and on whether being a particular person is a real feature of the world or only a way of speaking. This is an illustration of the idea, not a quotation.

Books and moments

  • The Oxford lectures on the Sentences are his main early work, later reworked in Paris.
  • His treatise on God as first being sets out an argument for God's existence and infinity.
  • Scotism is the name of the school his followers formed, which lasted for centuries.

Questions and criticism

  • Does univocity make God too much like us? Critics ask whether using the same word for God and creatures risks reducing God.
  • Is the will truly free? His emphasis on choice between opposites has been praised and challenged, and it shaped later debates.
  • How far did he disagree with Aquinas? He is often set against Aquinas on will and on individuality, but the extent of the disagreement is debated.

Close neighbours

He answered Aquinas, and William of Ockham later reacted to his ideas. The pages on Aquinas and Ockham show the conversation.

Written by epchē in our own words, and checked against independent sources on 9 October 2026. The sources are listed below.

Who they connect to

Influenced

  • Charles Sanders Peirce · Peirce called himself a scholastic realist in the tradition of Scotus.
  • Martin Heidegger · Heidegger wrote his first university thesis on a text then attributed to Scotus.
  • William of Ockham · Ockham took up Scotus' questions and often argued against his answers.

Influenced by

  • Anselm of Canterbury · Scotus defended and refined Anselm's argument for God.
  • Aristotle · Scotus worked in the Aristotelian framework of medieval universities while departing from it on will and being.
  • Ibn Sina (Avicenna) · Scotus adapted Avicenna's account of being and of common natures.
  • Thomas Aquinas · Scotus responded to Aquinas point by point while taking over much of his method.

Reacted against

  • Thomas Aquinas · Scotus disagreed with Aquinas about the priority of will over intellect and about how being is said.

Reacted against by

  • William of Ockham · Ockham rejected Scotus' common natures and held that only individual things exist.

Other Scholastic thinkers

Sources we used

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