darkness cannot be brought forward as a similar instance proving Nescience to be a positive entity. For that Darkness must be considered a positive substance follows, firstly, from its being more or less dense, and secondly, from its being perceived as having colour. To all this we make the following reply. Neither Perception alone, nor Perception aided by Reasoning, reveals to us a positive entity, Nescience, as implied in judgments such as 'I am non-knowing,' 'I know neither myself nor others.' The contradiction which was urged above against the view of non-knowledge being the antecedent non-existence of knowledge, presents itself equally in connexion with non-knowledge viewed as a positive entity. For here the following alternative presents itself--the inner Reality is either known or not known as that which gives definition to Nescience by being either its object or its substrate. If it be thus known, then there is in it no room for Nescience which is said to be that which is put an end to by the cognition of the true nature of the Inner Reality. If, on the other hand, it be not thus known, how should there be a consciousness of Nescience in the absence of that which defines it, viz. knowledge of the substrate or of the object of Nescience?--Let it then be said that what is contradictory to non-knowledge is the clear presentation of the nature of the inner Self, and that (while there is consciousness of ajñâna) we have only an obscure presentation of the nature of the Self; things being thus, there is no contradiction between the cognition of the substrate and object of Nescience on the one side, and the consciousness of ajñâna on the other.--Well, we reply, all this holds good on our side also. Even if ajñâna means antecedent non-existence of knowledge, we can say that knowledge of the substrate and object of non-knowledge has for its object the Self presented obscurely only; and thus there is no difference between our views--unless you choose to be obstinate!