“All our representations are referred by the understanding to some
object; and since appearances are merely representations, the
understanding refers them to a _something_ as the object of
sensuous intuition. But this something, thus conceived (_in so
fern_), is only the transcendental object; and by that is meant a
something = x, of which we know, and with the present constitution
of our understanding can know, nothing whatsoever, but which, as a
correlate of the unity of apperception, can serve only for the
unity of the manifold in sensuous intuition. By means of this
unity the understanding combines the manifold into the concept of
an object. This transcendental object cannot be separated from the
sense data, for nothing then remains over through which it might be
thought. Consequently it is not in itself an object of knowledge,
but only the representation of appearances under the concept of an
object in general which is determinable through the manifold of
those appearances. Precisely for this reason also the categories do
not represent a special object given to the understanding alone,
but only serve to specify the transcendental object (the concept of
something in general) through that which is given in sensibility,
in order thereby to know appearances empirically under concepts of
objects.”[785] “The object to which I relate appearance in general
is the transcendental object, _i.e._ the completely indeterminate
thought of _something_ in general. This cannot be entitled the
_noumenon_ [_i.e._ the thing in itself more specifically determined
as being the object of a purely intelligible intuition];[786] for I
know nothing of what it is in itself, and have no concept of it
save as the object of a sensuous intuition in general, and so as
being one and the same for all appearances.”[787]
Otherwise stated, Kant’s teaching is as follows. The thought of the
thing in itself remains altogether indeterminate; it does not _specify_
its object, and therefore yields no knowledge of it; none the less it is
a necessary ingredient in the concept of objectivity as such. The object
as specified in terms of sense is _mere representation_; the object as
genuinely objective can only be thought. The correlate of the unity of
apperception is the thought of the thing in itself. This is what Kant is
really asserting, though in a hesitating manner which would seem to
indicate that he is himself already more or less conscious of its
unsatisfactory and un-Critical character.