Let us take resemblance first. If someone always remem- bers a large proportion of his past perceptions, this will contribute greatly to the holding of a certain relation within the sequence of his perceptions, varied as they may be. For memory is just a faculty by which we raise up images of past perceptions; and an image of something must resemble it. So ·each memory involves a perception that resembles some past perception the person has had; and· the frequent occurrence of these resembling ·pairs of· perceptions in the chain of thought makes it easier for the imagination to move from one link in the chain to another, making the whole sequence seem like the continuation of a single object. In this way, therefore, memory doesn’t merely show the identity but also helps to create it, by bringing it about that many of the perceptions resemble one another. The account given in this paragraph applies equally to one’s sense of one’s own identity and to one’s thoughts about the identity of others.
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