Now there can be no doubt that awareness is a characteristic feature of the knowledge of cognition, whether it be present or absent in knowledge in the more extended sense. We must just accept this as what appears to be a fact. In science we do not pretend to say why facts are what they are and as they are. We take them as they are given, and endeavour to trace their connexions and their implications. Accepting, then, awareness as given, we must ask: Awareness of what? It is sometimes said that cognition is aware of itself. I am not sure that I understand what this means. If we are speaking of the cognitive relation, which is an awareness relation, the question seems to be whether a relation of awareness is related to itself. But of course if a field of cognitive relatedness be regarded as a complex whole, any part may be related to the rest, and the rest to any part. That kind of self-awareness--if we must so call it!--is eminently characteristic of cognition in the higher forms of its development. On these terms cognition is aware of itself--though the mode of statement savours of ambiguity. Let us next ask whether there is awareness of the underlying cortical process. If we are speaking of direct awareness, apparently not. The correlation between the two is only discoverable through a very elaborate and complex[73] application of further cognition in interpretative knowledge. We only know the correlated cortical process by description, as Mr. Bertrand Russell would say,[74] and never by direct acquaintance.