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Single Idea 7713

[filed under theme 26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / d. Knowing essences ]

Full Idea

We come to have the ideas of particular sorts of substance, by collecting such combinations of simple ideas as are by observation of men's senses taken notice of to exist together, and are supposed to flow from the unknown essence of that substance.

Gist of Idea

We identify substances by supposing that groups of sensations arise from an essence

Source

John Locke (Essay Conc Human Understanding (2nd Ed) [1694], 2.23.03)

Book Ref

Lowe,E.J.: 'Locke on Human Understanding' [Routledge 2004], p.296


A Reaction

Locke is notoriously somewhat ambiguous and unclear about some of his views, but this remark seems to make him the father of modern scientific essentialism. Note that this is an empiricist happily referring to an unperceived best explanation.


The 15 ideas with the same theme [whether we can know essences, and if so, how]:

Scientists must know the essential attributes of the things they study [Aristotle]
No one even knows the nature and properties of a fly - why it has that colour, or so many feet [Bacon,R]
We identify substances by supposing that groups of sensations arise from an essence [Locke]
Other spirits may exceed us in knowledge, by knowing the inward constitution of things [Locke]
By digging deeper into the axioms we approach the essence of sciences, and unity of knowedge [Hilbert]
Real essences are scientifically knowable, but so are non-essential properties [Copi]
Without general principles, we couldn't predict the behaviour of dispositional properties [Ellis]
Essentialism requires a clear separation of semantics, epistemology and ontology [Ellis]
It looks as if the immutability of the powers of a property imply essentiality [Shoemaker]
Science searches basic structures in search of essences [Kripke]
Find the essence by varying an object, to see what remains invariable [Velarde-Mayol]
Some dispositions are so far unknown, until we learn how to manifest them [Mumford]
To distinguish accidental from essential properties, we must include possible members of kinds [Mumford]
Essentialism starts from richly structured categories, leading to a search for underlying properties [Gelman]
If flame colour is characteristic of a metal, that is an empirical claim needing justification [Bird]