whatever of the second recalling the first, causing it to reappear, and thus authorizing its representation in the imagination; those impressions would succeed one another in the most total differentiation so total that it could not even be perceived, since no representation would be able to immobilize itself in one place, reanimate a former one, and juxtapose itself to it so as to give rise to a comparison; even that tiny overlap of identity necessary for all differentiation would not be provided.