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Full Idea
When P is an essence of O it follows that P is a necessary property of O. However, P can be a necessary property of O without being an essence of O.
Gist of Idea
Essential properties are necessary, but necessary properties may not be essential
Source
Anand Vaidya (Understanding and Essence [2010], 'Knowledge')
Book Ref
-: 'Philosophia' [-], p.819
A Reaction
This summarises the Kit Fine view with which I sympathise. However, I dislike presenting essence as a mere list of properties, which is only done for the convenience of logicians. But was Jessie Owens a great athlete after he lost his speed?
| 15107 | Aristotle doesn't see essential truths or essential properties as necessary [Aristotle, by Koslicki] |
| 17039 | The predicates of a thing's nature are necessary to it [Aristotle] |
| 12560 | We can only slightly know necessary co-existence of qualities, if they are primary [Locke] |
| 11997 | A property may belong essentially to one thing and contingently to another [Kung] |
| 13806 | Trivially essential properties are existence, self-identity, and de dicto necessities [Forbes,G] |
| 15172 | Clearly, essential predications express necessary properties [Sidelle] |
| 15687 | Kinship is essence that comes in degrees, and age groups are essences that change over time [Gelman] |
| 15112 | If an object exists, then its essential properties are necessary [Koslicki] |
| 19262 | Essential properties are necessary, but necessary properties may not be essential [Vaidya] |