Full Idea
The world we live in is the world of sense-data, but the world we talk about is the world of physical objects.
Gist of Idea
We live in sense-data, but talk about physical objects
Source
Ludwig Wittgenstein (Lectures 1930-32 (student notes) [1931], p.82), quoted by J. Alberto Coffa - The Semantic Tradition from Kant to Carnap 13 'Verif'
Book Reference
Coffa,J.Alberto: 'The Semantic Tradition from Kant to Carnap' [CUP 1993], p.245
A Reaction
I really like that one. Even animals, I surmise, think of objects quite differently from the way they immediately experience them.