Full Idea
I suggest that sortals are likewise required for determining essence. One cannot answer the question 'What is the essence of this?' without supplying the sortal - of this 'what'.
Gist of Idea
Sortals are needed for determining essence - the thing must be categorised first
Source
Susan A. Gelman (The Essential Child [2003], 01 'Prelims')
Book Reference
Gelman,Susan A.: 'The Essential Child' [OUP 2005], p.13
A Reaction
I remain baffled by this view. I take the category to be an inductive generalisation from other similar individuals. It can't get off the ground if you don't start with the individuals. Sortals are just a shorthand.