But what do
you mean by “redness exists”? My watch
exists, if it hasn't been pulled to pieces, if it
hasn't been
destroyed. What would
we call “destroying redness”? We might
of course mean destroying all red objects; but would this make it
impossible to imagine a red object? Supposing to
this one answered: “But surely, red objects
must have existed and you must have seen them?”
‒ ‒ ‒ But how do you know that this is so?
Suppose I said “Exerting a pressure on your
eyeball produces a red
image”. Couldn't the way by which you
first became acquainted with red have been this? And
why shouldn't it have been just imagining a red
patch? (The difficulty which you will feel
51.
here will have
to be discussed at a later occasion).