Full Idea
Causal laws often do not make reference to kinds of objects at all, but rather summarize relations between quantitative, causally efficacious properties of objects.
Gist of Idea
Many causal laws do not refer to kinds, but only to properties
Source
Anjan Chakravarrty (Inessential Aristotle: Powers without Essences [2012], 3)
A Reaction
This would only be a serious challenge if it was not possible to translate talk of properties into talk of kinds, and vice versa.