I have already referred to the faculty of memory in illustration; it will serve me also here. We can form an abstract idea of memory, and call it one faculty, which has for its subject-matter all past facts of our personal experience; but this is really only an illusion; for there is no such gift of universal memory. Of course we all remember, in a way, as we reason, in all subject-matters; but I am speaking of remembering rightly, as I spoke of reasoning rightly. In real fact memory, as a talent, is not one indivisible faculty, but a power of retaining and recalling the past in this or that department of our experience, not in any whatever. Two memories, which are both specially retentive, may also be incommensurate. Some men can recite the canto of a poem, or good part of a speech, after once reading it, but have no head for dates. Others have great capacity for the vocabulary of languages, but recollect nothing of the small occurrences of the day or year. Others never forget any statement which they have read, and can give volume and page, but have no memory for faces. I have known those who could, without effort, run through the succession of days on which Easter fell for years back; or could say where they were, or what they were doing, on a given day, in a given year; or could recollect accurately the Christian names of friends and strangers; or could enumerate in exact order the names on all the shops from Hyde Park Corner to the Bank; or had so mastered the University Calendar as to be able to bear an examination in the academical history of any M. A. taken at random. And I believe in most of these cases the talent, in its exceptional character, did not extend beyond several classes of subjects. There are a hundred memories, as there are a hundred virtues. Virtue is one indeed in the abstract; but, in fact, gentle and kind natures are not therefore heroic, and prudent and self-controlled minds need not be open-handed. At the utmost such virtue is one only _in posse_; as developed in the concrete, it takes the shape of species which in no sense imply each other.