To this the following remark can be added: The representation of something per sisting in existence is not the same as a persisting representation; for that can be quite variable and changeable, as all our representations are, even the representations of matter, while still being related to something permanent, which must therefore be a thing distinct from all my representations and ex ternal, the existence of which is necessarily included in the determination of my own existence, which with it constitutes only a single experience, which could not take place even as inner if it were not simultaneously (in part) outer.