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Single Idea 12098

[filed under theme 9. Objects / D. Essence of Objects / 6. Essence as Unifier ]

Full Idea

The what-it-was-to-be-that-thing [to ti en einai] is a unity of a kind straight off, just as it is a being of a kind. And that is why none of these things has some other cause of their being a unity, any more than they do of their being a being of a kind.

Gist of Idea

An essence causes both its own unity and its kind

Source

Aristotle (Metaphysics [c.324 BCE], 1045b04)

Book Ref

Aristotle: 'Metaphysics', ed/tr. Lawson-Tancred,Hugh [Penguin 1998], p.249


A Reaction

This seems to be the key importance of the notion of essence - it is what both bestows unity on things in the world (which is basic to ontology and epistemology), and what enables us to categorise things (basic to epistemology).


The 24 ideas with the same theme [essence is what unifies the parts of a thing]:

Plato and Aristotle take essence to make a thing what it is [Plato, by Politis]
A thing's essence is its intrinsic nature [Aristotle]
Having an essence is the criterion of being a substance [Aristotle, by Lawson-Tancred]
An essence causes both its own unity and its kind [Aristotle]
A simple substance is its own essence [Aquinas]
If essence and existence were two things, one could exist without the other, which is impossible [William of Ockham]
Essence gives existence and conception to things, and is inseparable from them [Spinoza]
Not all identity is unity of substance [Locke]
Essence is the very being of any thing, whereby it is what it is [Locke]
Bodies need a soul (or something like it) to avoid being mere phenomena [Leibniz]
A substantial bond of powers is needed to unite composites, in addition to monads [Leibniz]
Essence is the essential self-positing unity of immediacy and mediation [Hegel]
In logic the nature of a kind, substance or individual is the essence which is inseparable from what it is [Harré/Madden]
De re essentialism standardly says all possible objects identical with a have a's essential properties [Brody]
If unity is a matter of degree, then essence may also be a matter of degree [Witt]
Could a horse lose the essential property of being a horse, and yet continue to exist? [Benardete,JA]
Essences are what it is to be that (kind of) thing - in fact, they are the thing's identity [Shalkowski]
A property is essential iff the object would not exist if it lacked that property [Forbes,G]
Properties are trivially essential if they are not grounded in a thing's specific nature [Forbes,G]
Essentially having a property is naturally expressed as 'the property it must have to be what it is' [Fine,K]
What it is is fixed prior to existence or the object's worldly features [Fine,K]
Essentialism is the main account of the unity of objects [Oderberg]
The loss of an essential property means the end of an existence [Elder]
Deep essentialists say essences constrain how things could change; modal profiles fix natures [Paul,LA]