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is apprehended according to a possible
idea. There is a suggestion an instigation without any
prompting. For example, you look at
something and say, “It is red.” Well, I ask
you what justification you have for such a
judgment. You reply, “I saw it was red.”
Not at all. You saw nothing in the least like that.
You saw an image. There was no subject or predicate
in it. It was just one unseparated image,
not resembling a proposition in the smallest particular.
It instigated you to your judgment, owing to a
possibility of thought; but it never told you so.
Now in all imagination and perception there
is such an operation by which thought springs
up; and its only justification is that it subsequently