Full Idea
The original concept of cat is: that kind of thing, where the kind can be identified by paradigmatic instances.
Gist of Idea
The original concept of 'cat' comes from paradigmatic instances
Source
Saul A. Kripke (Naming and Necessity lectures [1970], Lecture 3)
Book Reference
Kripke,Saul: 'Naming and Necessity' [Blackwell 1980], p.122
A Reaction
Kripke evokes Putnam at this point, since he is famous for this proposal. Note that Kripke uses the plural, invoking more than one instance. Presumably we must abstract the fur colours from the instances?