Template:Otheruses Template:Aristotelianism Ousia (Template:Polytonic) is the Ancient Greek noun formed on the feminine present participle of Template:Polytonic (to be); it is analogous to the English participle being, and the Greek ontic. Ousia is often translated (sometimes incorrectly) to Latin as substantia and essentia, and to English as substance and essence; and (loosely) also as (contextually) the Latin word accident[1] which conflicts with the denotation of symbebekós, given that Aristotle uses symbebekós in showing that inhuman things (objects) also are substantive.[2]

Philosophic and scientific useEdit

The Greek philosophers Plato and Aristotle used ousia in their ontologies; their denotations are the contemporary philosophic and theological usages. Aristotle used ousia in creating animal phyla in biology, ousia denoting that which is shared: essence, form, and nature, and hypostasis denoting that which is particular: an individual instance or thing.

Quite later, Martin Heidegger said that the original meaning of the word ousia was lost in its translation to the Latin, and, subsequently, in its translation to modern languages. For him, ousia means Being, not substance, that is, not some thing or some being that "stood"(-stance) "under"(sub-). Moreover, he also uses the bi-nomial parousia-apousia, denoting presence-absence, and hypostasis denoting existence.

Theological significanceEdit

Origen, (d. 251) used ousia in defining God as one genus of ousia, while being three, distinct species of hypostasis: the Father, the Son, and the Holy Spirit. The Synods of Antioch condemned the word homoousios (same substance) because it originated in pagan Greek philosophy. The Paul of Samosata entry of the Catholic Encyclopedia says:

It must be regarded as certain that the council, which condemned Paul, rejected the term homoousios; but, naturally, only in a false sense, used by Paul; not, it seems, because he meant by it a unity of Hypostasis in the Trinity (so St. Hilary), but because he intended, by it, a common substance, out of which both Father and Son proceeded, or which it divided between them — so St. Basil and St. Athanasius; but the question is not clear. The objectors to the Nicene doctrine in the fourth century made copious use of this disapproval of the Nicene word by a famous council.[3]

The general agreed upon meaning of ousia in Eastern Christianity is all that subsist by itself and which has not its being in another.[4] In contrast to hypostasis which is used to mean reality or existence.[5]

In 325, the First Council of Nicaea condemned Arianism and formulated a creed, which stated that in the Godhead the Son was Homoousios (same in substance) of the Father. However, controversy did not stop and many Eastern clerics rejected the term because of its earlier condemnation in the usage of Paul of Samosata. Subsequent Emperors Constantius II and Valens supported Arianism and theologians came up with alternative wordings like Homoios (similar) homoiousios (similar in substance), or Anomoios (unsimilar). While the Homoios achieved the support of several councils and the Emperors, those of an opposing view were suppressed. The adherents of the Homoiousios eventually joined forces with the (mostly Western) adherents of the Homoousios and accepted the formulation of the Nicene creed.

See alsoEdit


  1. Philosophical Dictionary: Erasmus-Extrinsic
  2. Commentary on Aristotle's Physics
  4. St John Damascene gives the following definition of the conceptual value of the two terms in his Dialectic: Ousia is a thing that exists by itself, and which has need of nothing else for its consistency. Again, ousia is all that subsists by itself and which has not its being in another.Pg 50 The Mystical Theology of the Eastern Church, by Vladimir Lossky SVS Press, 1997. (ISBN 0-913836-31-1) James Clarke & Co Ltd, 1991. (ISBN 0-227-67919-9)
  5. Hypostasis meaning existence in general Pg 51 The Mystical Theology of the Eastern Church, by Vladimir Lossky SVS Press, 1997. (ISBN 0-913836-31-1) James Clarke & Co Ltd, 1991. (ISBN 0-227-67919-9)


External linksEdit

et:Ousia el:Ουσία ia:Ousia pt:Ousia ro:Ousia fi:Ousia

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