Grammar & the nature of objects.
  What do we call the nature of an obj.?
  “What is the nature of this→?”
  Determining objcts by pointing in various ways
  Having in comon.
  The object which I mean
“What is the nature of space?” of what? “ ״ ״ ״ ״ ״ colour?”
“What I mean must have this grammar”
The name of the obj which
I am talking about must have …”.
Pointing to colour, to the phys. body.
Sense data, origin of the idea. Philos. since Decartes. Concentrating ones attention. Looking & seeing
“Only sense data are real”
Is a cube symmetrical or not?
“I can't know what he feels” “Only he can know ״ ״ ״ ”
“Only you can know what you feel!”
  Privacy of sense data
Private language          G