I call my life--both these notions are, by an irresistible
association, recalled by every sensation I have. They
represent two things, with both of which the sensation of
the moment, be it what it may, stands in relation; and I
cannot be conscious of the sensation without being conscious
of it as related to these two things. They have accordingly
received relative names, expressive of the double relation
in question. The thread of consciousness which I apprehend
the relation as a part of, is called the _Subject_; the
group of Permanent Possibilities of Sensation to which I
refer it, and which is partially realized and actualized in
it, is called the _Object_ of the sensation. The sensation
itself ought to have a correlative name, or rather ought to
have two such names--one denoting the sensation as opposed
to its Subject, the other denoting it as opposed to its
Object; but it is a remarkable fact that this necessity has
not been felt, and that the need of a correlative name to
every relative one has been considered to be satisfied by
the terms Object and Subject themselves. It is true that
these two are related to one another, but only through the
sensation. We have no conception of either Subject or
Object, either Mind or Matter, except as something to which
we refer our sensations, and whatever other feelings we are
conscious of. _The very existence of them both, so far as
cognizable by us, consists only in the relation they
respectively bear to our states of feeling._ Their relation
to each other is only the relation between those two
relations. The immediate correlatives are, not the pair,
_Object, Subject,_ but the two pairs, Object, _Sensation
objectively considered_--Subject, _Sensation subjectively