To enter into details.--Those who maintain the doctrine of a substance devoid of all difference have no right to assert that this or that is a proof of such a substance; for all means of right knowledge have for their object things affected with difference.--Should any one taking his stand on the received views of his sect, assert that the theory of a substance free from all difference (does not require any further means of proof but) is immediately established by one's own consciousness; we reply that he also is refuted by the fact, warranted by the witness of the Self, that all consciousness implies difference: all states of consciousness have for their object something that is marked by some difference, as appears in the case of judgments like 'I saw this.' And should a state of consciousness--although directly apprehended as implying difference--be determined by some fallacious reasoning to be devoid of difference, this determination could be effected only by means of some special attributes additional to the quality of mere Being; and owing to these special qualities on which the determination depends, that state of consciousness would clearly again be characterised by difference. The meaning of the mentioned determination could thus only be that of a thing affected with certain differences some other differences are denied; but manifestly this would not prove the existence of a thing free from all difference. To thought there at any rate belongs the quality of being thought and self-illuminatedness, for the knowing principle is observed to have for its essential nature the illumining (making to shine forth) of objects. And that also in the states of deep sleep, swoon, &c., consciousness is affected with difference we shall prove, in its proper place, in greater detail. Moreover you yourself admit that to consciousness there actually belong different attributes such as permanency (oneness, self-luminousness, &c. ), and of these it cannot be shown that they are only Being in general. And even if the latter point were admitted, we observe that there takes place a discussion of different views, and you yourself attempt to prove your theory by means of the differences between those views and your own. It therefore must be admitted that reality is affected with difference well established by valid means of proof. Sabda proves difference.