Accordingly, all that is left on this view is the simple representation 'I,' a representation entirely devoid of content, of which one cannot even say that it is a concept, but must say that it is a mere consciousness, one that accompanies every concept Now, as Kant argues further, this 'I,' or, if you prefer, this 'it' (the thing) that thinks, takes us no further than the representation of a transcendental subject of thoughts, a subject which is known only through the thoughts that are its predicates, and of which, taken in isolation, we cannot ever have the least concept