the understanding is not itself a faculty of in tuitions, and even if these were given in sensibility cannot take them up into itself, in order as it were to combine the manifold of its own intuition, thus its synthesis, considered in itself a alone, is nothing other than the unity of the action of which it is conscious as such even with out sensibility, but through which it is capable of itself determining sensibility internally with regard to the manifold that may be given to it in accordance with the form of its intuition.