Full Idea
Some mental phenomena - in particular, sensations like tickles and pains - do not seem to exhibit either reference or content.
Gist of Idea
Pain has no reference or content
Source
Jaegwon Kim (Philosophy of Mind [1996], p. 21)
Book Reference
Kim,Jaegwon: 'Philosophy of Mind' [Westview 1998], p.21
A Reaction
This could be challenged. These sensations cannot be had without a bodily location, and they give information about possible contact or damage.
Related Idea
Idea 4089 Pains have a region of the body as their intentional content, not some pain object [Crane]