Full Idea
An entity's essence is just what that entity is, revealed by its real definition. This isn't a distinct entity, but either the entity itself, or (my view) no entity at all. ..We should not reify essence, as that leads to an infinite regress of essences.
Gist of Idea
An essence is what an entity is, revealed by a real definition; this is not an entity in its own right
Source
E.J. Lowe (What is the Source of Knowledge of Modal Truths? [2013], 6)
Book Reference
-: 'Mind' [-], p.23
A Reaction
The regress problem is a real one, if we wish to treat an essence as some proper and distinct part of an entity. If it is a mechanism, for example, the presumably a mechanism has an essence. No, it doesn't! Levels of explanation!
Related Idea
Idea 16551 Grasping an essence is just grasping a real definition [Lowe]